August 28, 2026

From 2015 to 2026: A Week of Decade-Old and Newly Exploited Flaws in the KEV Catalog

Executive Summary

The past week reflected sustained pressure on defenders, marked by an unusually high volume of confirmed exploitation activity. CISA added eleven vulnerabilities to the Known Exploited Vulnerabilities catalog during the week. The additions spanned TrueConf Server (two entries), Zimbra Collaboration Suite, Oracle, Gitea, Ajax.NET Professional, the Linux kernel, Citrix NetScaler ADC and Gateway, and Microsoft SQL Server, alongside two Red Hat vulnerabilities more than a decade old.  

Beyond the KEV additions, vendors confirmed active exploitation across several widely deployed web platforms. Two flaws in the miniOrange SAML Single Sign-On plugin for WordPress were chained in the wild to bypass authentication and seize administrator accounts, while two further WordPress plugin vulnerabilities, a critical GitLab code injection flaw, and server-side template injection issues in TYPO3 CMS and SPIP CMS drew confirmed exploitation or scanning within days of disclosure.

Two China-linked campaigns disclosed during the week reinforced the threat to critical infrastructure. A joint FBI, NSA, and Cyber National Mission Force advisory attributed the QTFY group, linked to a Nanjing-based company with ties to China's Ministry of State Security, to intrusions against military, government, energy, and telecommunications targets using its QScan, QTRouter, and QTBotnet platforms. Separately, Cisco Talos detailed the Chinese-speaking group UAT-10147 deploying the cross-platform SPECTRE backdoor against IIS and Linux servers, pairing it with a Linux kernel rootkit and commodity backdoors, and assessed with medium confidence that the group used AI-assisted development.

Key highlights of the week:

  • CISA added eleven vulnerabilities to the KEV catalog
  • Active exploitations across multiple platforms
  • A joint FBI, NSA, and CNMF advisory attributed intrusions against US critical infrastructure to the China-linked QTFY group using its QScan, QTRouter, and QTBotnet platforms.
  • Cisco Talos detailed the Chinese-speaking UAT-10147 group deploying the cross-platform SPECTRE backdoor and a Linux kernel rootkit against IIS and Linux servers.

What are the top trending or critical vulnerabilities observed this week?

Several high-impact vulnerabilities are currently trending across the cybersecurity community, demanding immediate attention and patch prioritization. Monitoring these emerging and widely discussed threats provides valuable insights, enabling organizations to make informed security decisions and strengthen their overall defense posture.

CVE-2026-8452 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Citrix NetScaler ADC and NetScaler Gateway

A Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability resided in Citrix NetScaler ADC and NetScaler Gateway, the enterprise appliances that handled load balancing, SSL VPN, and remote access at the network perimeter for large organizations, and could lead to denial of service. According to WatchTowr Labs, the flaw constituted a pre-authentication heap overflow in the nsppe packet-processing engine, exploitable when the appliance operated as a SAML Service Provider or Identity Provider, with WatchTowr attributing it tentatively since Citrix does not correlate individual CVEs to specific bugs. The root cause lay in SAML signature validation, where NetScaler copied attacker-controlled data from a signed SAML message into a fixed-size buffer without verifying that the data fit, so an oversized input overflowed the buffer, corrupted adjacent engine state, and crashed nsppe, the engine that ran as root. WatchTowr escalated the crash to full pre-authentication remote code execution, ultimately dropping a webshell and obtaining root-level command execution on the appliance, aided by the absence of standard memory protections in the affected binary. Citrix addressed the flaw in a security update on June 30, 2026 via bulletin CTX696604, with fixed builds NetScaler ADC and Gateway 14.1-72.61 and 13.1-63.18 and later; a public proof of concept subsequently emerged and active exploitation followed. CISA added the vulnerability to its KEV catalog recently.

CVE-2026-15981 - Authentication Bypass vulnerability in miniOrange SAML Single Sign-On plugin for WordPress

An Authentication Bypass vulnerability in the miniOrange SAML 2.0 Single Sign-On plugin for WordPress made it possible for an attacker to sign in as any WordPress user, including an administrator. The flaw, tracked as CVE-2026-15981, stemmed from mishandling of the tri-state return value of openssl_verify(), which returns 1 for a valid signature, 0 for invalid, and -1 when OpenSSL itself errors. The plugin evaluated this result loosely as a boolean, and because -1 is truthy in PHP, a malformed signature that tripped OpenSSL's internal error path was accepted as valid; an attacker crafted a SAML response carrying a malformed signature, forced openssl_verify() into its error state, and had the returned -1 treated as successful verification. The defect lay in the XMLSecurityKey.php routine that returned the raw tri-state result and the Utilities.php line that evaluated it as a boolean. miniOrange patched the flaw in version 5.4.5.

CVE-2026-19478 - Code Injection vulnerability in GitLab

A Code Injection vulnerability in GitLab Community Edition and Enterprise Edition allowed an unauthenticated attacker to remotely modify or delete public projects and user data through a flawed GraphQL directive. GitLab patched the flaw on August 17, 2026 in versions 19.2.4, 19.1.6, 19.0.8, and 18.11.11. WatchTowr reproduced the vulnerability within minutes of disclosure and reported active exploitation against its honeypot network roughly two days later, warning that a single unauthenticated request could delete entire repositories, forge merge records, or ban maintainers. The ability to forge merge records posed a direct software-supply-chain risk, since a manipulated record could make a fix appear to have landed when it had not. A public proof-of-concept lab subsequently circulated on GitHub, further lowering the barrier to exploitation.

CVE-2026-19598 - Unauthenticated Privilege Escalation via Authorization Bypass vulnerability in the Pods - Custom Content Types and Fields plugin for WordPress

An Unauthenticated Privilege Escalation vulnerability in the Pods - Custom Content Types and Fields plugin for WordPress allowed attackers to bypass the plugin's access controls and take over vulnerable sites. The flaw resided in the public pods_admin AJAX router, where each access check relied on the pods_error() function to halt failed requests, but under JSON error mode pods_error() failed to terminate execution and merely returned false, letting requests fall through every guard to the dynamic method dispatch. An unauthenticated attacker triggered the path with an Accept: application/json header and the meta-box-loader parameter, then reached the save_user method to overwrite any existing user's password, including the administrator's, enabling complete site takeover. Because the bypass defeated the router as a whole, other privileged methods capable of writing PHP files or deleting arbitrary files were also exposed. Pods Foundation patched the flaw across several release branches, and Wordfence blocked 7,906 attacks within a 24-hour period, confirming active exploitation in the wild.

CVE-2026-19632 - Unauthenticated Account Takeover via Password Reset Link Disclosure vulnerability in the Translate Multilingual sites with AI Translation plugin for WordPress

An unauthenticated account takeover vulnerability in the TranslatePress - Translate Multilingual plugin for WordPress enabled full administrator takeover by exposing a password reset link to unauthenticated visitors. The flaw chained two plugin behaviors: TranslatePress passed outgoing email through its translation pipeline, so a reset email sent to an administrator whose profile used a published secondary language persisted in the dictionary table with the plaintext reset key intact, while a public AJAX action returned dictionary rows to any attacker who supplied string IDs. An unauthenticated attacker who knew an administrator username or email triggered a password reset, read the reset URL out of the secondary-language dictionary through the AJAX action, set a new password, and logged in as administrator. That access enabled complete site compromise, since an administrator could create further admin accounts, install backdoored plugins or themes, or exfiltrate data. TranslatePress resolved the flaw in version 3.3.2, and Wordfence blocked 6,857 attacks within a 24-hour period.

CVE-2026-21962 - Improper Access Control vulnerability in Oracle HTTP Server and Oracle Weblogic Serevr Proxy Plug-in  

An Improper Access Control vulnerability in Oracle HTTP Server and Oracle WebLogic Server Proxy Plug-in resulted in unauthorized creation, deletion, or modification of critical data, unauthorized access to critical data, or complete access to all data accessible through Oracle HTTP Server and Oracle WebLogic Server Proxy Plug-in. Oracle WebLogic Server operated as a widely used enterprise-grade Java application server supporting business-critical applications in enterprise environments, making the platform a high-value target for threat actors seeking initial access and system control. According to CloudSEK, a high-interaction honeypot simulating a vulnerable WebLogic Server (v14.1.1.0.0) across a 12-day period from January 22 to February 3, 2026 revealed immediate and widespread exploitation, with the first attempt appearing the same day exploit code went public and broader scanning emerging by January 27, 2026, predominantly from rented VPS infrastructure targeting endpoints such as /bea_wls_internal/ProxyServlet. The honeypot also captured attempts against legacy WebLogic flaws including CVE-2020-14882 and CVE-2020-14883, CVE-2020-2551, and CVE-2017-10271, reinforcing continued reliance on a limited set of easily exploitable vulnerabilities, while the absence of authentication requirements rendered the flaw particularly dangerous by enabling data exfiltration, malware deployment, and persistent backdoor installation through a single crafted request. Oracle addressed the vulnerability in the January 2026 Critical Patch Update advisory, public proof-of-concept code existed, and the vulnerability was added to the CISA KEV catalog.

CVE-2026-60004 - Code Injection vulnerability in Gitea

A Code Injection vulnerability in Gitea allowed an attacker with repository write access to send a malicious patch to the diffpatch API endpoint, plant an executable Git hook, and run shell commands as the Gitea service account. Gitea operated as a lightweight, self-hosted Git service written in Go and positioned as an open-source alternative to GitHub, GitLab, and Bitbucket, common across internal enterprise deployments, self-managed development environments, and homelab setups. The flaw resided in the POST /api/v1/repos/{owner}/{repo}/diffpatch endpoint, where submission of an identical patch twice produced an add/add collision that wrote an executable file to hooks/post-index-change, after which Git executed the planted hook during the index update and granted the privileges of the Gitea service account, exposing application secrets, mounted repositories, database credentials, OAuth credentials, and reachable internal services. Default open registration widened the exposure, since an external visitor registered an account, created a repository, and obtained the required write access without pre-existing credentials, and independent incident documentation on Habr described automated mass exploitation against a self-hosted Gitea 1.24.7 instance that progressed from account registration to code execution in roughly 11 seconds and deployed a cryptocurrency-miner-like dropper as the git user inside a Docker container. The vulnerability affected all versions from 1.17, and Gitea addressed the flaw in version 1.27.1, with public proof-of-concept code available and the vulnerability added to the CISA KEV catalog.

CVE-2026-61979 - Unauthenticated Privilege Escalation vulnerability in the SAML SP Sign-On WordPress plugin

A Signature Algorithm Confusion vulnerability in the miniOrange SAML 2.0 Single Sign-On plugin for WordPress allowed an incoming SAML response to select its own signature algorithm, opening the door to unauthenticated privilege escalation. By setting the SignatureMethod to HMAC-SHA1, an attacker caused the plugin to treat the trusted RSA public key as an HMAC shared secret; because the identity provider public key was publicly available, the attacker fetched it from the IdP metadata endpoint, used it as the HMAC secret, signed a self-crafted assertion, and had the plugin verify the forged assertion as genuine. The flawed logic spanned the plugin's Utilities.php routines and its bundled XMLSecurityKey.php library, which enabled HMAC-SHA1 as a valid option and passed the raw PEM material directly into hash_hmac() as the secret rather than rejecting it. Successful exploitation lets an attacker sign in as any WordPress user, including an administrator, resulting in full site compromise. miniOrange patched the flaw in version 5.4.5, and a public proof of concept was available.

CVE-2026-72529 - Missing Authentication for Critical Function vulnerability in TrueConf Server

A Missing Authentication for Critical Function vulnerability in TrueConf Server allowed a remote unauthorized attacker with network access over port 4307/TCP to execute an arbitrary script. TrueConf Server operated as a self-hosted video conferencing and unified communications platform managing client registration, conference scheduling, and client software distribution within an organization's own infrastructure, and listened on port 4307/TCP, open by default per product documentation. According to Securelist, the Head Mare group chained two vulnerabilities against unpatched TrueConf servers, using this missing authentication flaw as the first to gain sandboxed code execution and a second flaw to break out to full system control. Exploiting this vulnerability, the attackers connected to the TrueConf server without prior authorization over port 4307/TCP, called a server function to transmit a malicious script, and executed the script on the server, though the received script ran inside an isolated environment where operating system functions remained inaccessible by default, limiting the immediate reach of the executed code. The affected releases spanned versions 5.3.X through 5.3.9, 5.4.X through 5.4.9, and 5.5.X through 5.5.5, and TrueConf addressed the flaws in Server versions 5.3.9, 5.4.9, and 5.5.5, with the vulnerability added to the CISA KEV catalog.

CVE-2026-72530 - Code Injection vulnerability in TrueConf Server

A Code Injection vulnerability in TrueConf Server allowed an unauthorized remote attacker with network access over port 4307/TCP to break out of the isolated environment through a specially crafted script and execute arbitrary code on the host system. TrueConf Server operated as a self-hosted video conferencing and unified communications platform managing client registration, conference scheduling, and client software distribution within an organization's own infrastructure, and listened on port 4307/TCP, open by default per product documentation. According to Securelist, the Head Mare group chained two vulnerabilities against unpatched TrueConf servers, using the first for sandboxed code execution and this code injection flaw as the second to escape the isolated environment and execute commands as the NT AUTHORITY\SYSTEM account. Following the sandbox escape, Head Mare replaced the file ...\public\js\locale.php with a web shell for remote control, collected infrastructure data, gained privileged access to the TrueConf database, replaced the legitimate TrueConf Client distribution with a version carrying the PhantomCore backdoor, and established persistence through a registry key at HKEY_CURRENT_USER\Software\Classes\CLSID{0340F119-A598-4ed9-B0AC-6F6A12D3E755}\InprocServer32 set to the path of the malicious file. The affected releases spanned versions 5.3.X through 5.3.9, 5.4.X through 5.4.9, and 5.5.X through 5.5.5, and TrueConf addressed the flaws in Server versions 5.3.9, 5.4.9, and 5.5.5, with the vulnerability added to the CISA KEV catalog.

CVE-2026-73570 - OS Command Injection vulnerability in Zimbra Collaboration Suite (ZCS)

A Remote Code Execution vulnerability in Zimbra Collaboration resided in the SNMP notification handling, where improper sanitization of untrusted input during SNMP notification processing allowed crafted input to reach the shell. Zimbra Collaboration operated as a self-hosted email and collaboration platform providing mail, calendaring, contacts, file sharing, and web-client access, serving millions of users globally across enterprise and government deployments running mailbox, proxy, and MTA roles with optional add-on packages such as zimbra-snmp for monitoring. An unauthenticated attacker sent specially crafted SMTP requests to a vulnerable instance and executed arbitrary operating system commands as the zimbra user, with the path requiring the optional zimbra-snmp package installed and SNMP notifications enabled via the snmp_notify parameter, while the default-enabled swatchdog service further increased exposure for organizations running SNMP trap notifications. CERT Polska shared hunting guidance in its active exploitation alert, urging administrators to inspect /var/log/zimbra.log for suspicious Zimbra service restarts, where indicators appeared as service status change entries showing a payload moving between stopped and running states, and to review recently created files by the zimbra user within the last 30 days across /opt/zimbra/jetty/webapps/, /opt/zimbra/jetty_base/webapps/, and /tmp/. The vulnerability affected versions prior to 10.1.20, and Zimbra addressed the flaw in Collaboration Suite version 10.1.20, with the vulnerability added to the CISA KEV catalog.

CVE-2026-77136 - Server-Side Template Injection vulnerability in TYPO3 CMS

A Server-Side Template Injection vulnerability in the powermail extension for TYPO3 CMS allowed an unauthenticated attacker to inject and execute malicious commands remotely. The flaw arose when a form field was configured with the "This field contains the name of the sender" option, which caused the extension to pass the raw field value directly into a Fluid View as template source without sanitization; an attacker submitted Fluid template syntax within that field, and the server executed the resulting arbitrary Fluid ViewHelpers, leading to potential remote code execution. The vendor advisory warned that the flaw let an anonymous user run arbitrary commands and disclose server configuration, environment variables, and application source, and confirmed the vulnerability was actively exploited in the wild. The risk was widened because powermail, though not part of the TYPO3 core, ranked among the most widely used form extensions in the ecosystem, leaving a large potential blast radius. in2code patched the flaw in powermail versions 10.9.3, 12.6.1, and 13.2.1.

CVE-2026-77806 - Code Injection vulnerability in SPIP

A Code Injection vulnerability in the SPIP content management system allowed unauthenticated remote attackers to execute arbitrary code on a vulnerable server with no login required. The flaw stemmed from an HTTP request header named X-Spip-Filtre, which SPIP mishandled inside its analyse_resultat_skel routine, letting attacker-supplied input reach code execution; because the trigger was a single HTTP header, exploitation was straightforward. SPIP addressed the issue in version 4.4.21, which also bundled several unrelated fixes for SQLite handling and header capture. The exposure was significant because SPIP powered a large number of public websites, particularly across French-speaking institutions and public-sector bodies, placing a wide footprint at risk from a network-reachable remote code execution flaw. A public proof of concept was also available, further lowering the barrier to exploitation.

CVE-2022-0995 - Out-of-Bounds Write vulnerability in Linux Kernel

An Out-of-Bounds Write vulnerability in the Linux kernel allows a local user to gain privileged access or cause a denial of service on the system. Kernel developers patched the flaw in 2022. CISA added CVE-2022-0995 to its KEV catalog recently, following a report from Cisco Talos that detailed a Chinese cybercrime group known as UAT-10147 targeting Windows and Linux web servers globally across the education, media, technology, and gaming sectors.

CVE-2021-23758 - Deserialization of Untrusted Data vulnerability in Ajax.NET Professional

A Deserialization of Untrusted Data vulnerability in Ajax.NET Professional allowed remote code execution through arbitrary .NET classes. The affected products may be end-of-life or end-of-service, so users are advised to discontinue use or transition to a supported version. CISA added CVE-2021-23758 to its KEV catalog recently, following a report from Cisco Talos that detailed a Chinese cybercrime group known as UAT-10147 targeting Windows and Linux web servers globally across the education, media, technology, and gaming sectors.

CVE-2019-1068 - Remote Code Execution vulnerability in Microsoft SQL Server

A Remote Code Execution vulnerability in Microsoft SQL Server allows an attacker to execute code in the context of the SQL Server Database Engine service account. Microsoft addressed the flaw in July 2019, and the Mallox ransomware operation has since exploited it, to gain initial access to exposed MS-SQL servers. No public information currently describes how it is being exploited in the most recent activity. CISA nonetheless cited evidence of active exploitation when it added the vulnerability to its KEV catalog recently.

CVE-2015-3246 - Race Condition vulnerability in Red Hat Libuser

A Race Condition vulnerability in Red Hat Libuser allowed authenticated local users to corrupt the /etc/passwd file, causing a denial of service or privilege escalation. In libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, the library directly modified /etc/passwd, which let local users cause a denial of service through an inconsistent file state by triggering an error during modification; the issue could be combined with CVE-2015-3245 to gain privileges. CISA added CVE-2015-3246 to its KEV catalog recently following a report from Cisco Talos that detailed a Chinese cybercrime group known as UAT-10147 targeting Windows and Linux web servers globally across the education, media, technology, and gaming sectors.

CVE-2015-5287 - Privilege Escalation vulnerability in Red Hat Automatic Bug Reporting Tool

A Privilege Escalation vulnerability in the Red Hat Automatic Bug Reporting Tool (ABRT) allowed local users with certain permissions to gain privileges through a symlink attack on a file with a predictable name. The affected products may be end-of-life or end-of-service, so users are advised to discontinue use or transition to a supported version. CISA added CVE-2015-5287 to its KEV catalog recently, following a report from Cisco Talos that detailed a Chinese cybercrime group known as UAT-10147 targeting Windows and Linux web servers globally across the education, media, technology, and gaming sectors.

What did Cytellite sensors detect this week?

Cytellite telemetry captured active exploit attempts and mass scanning campaigns against exposed services globally. The data highlights which vulnerabilities are under attack and provides source IPs and payloads to authorized teams for detailed threat analysis and validation.

Vulnerabilities Product Severity Title Exploited in the-wild CISA KEV
CVE-2026-63030 WordPress Core Critical Interpretation Conflict vulnerability in WordPress Core No True
CVE-2025-57819 Sangoma FreePBX Critical Authentication Bypass Vulnerability in Sangoma FreePBX Yes True
CVE-2025-5777 Citrix NetScaler ADC and Gateway Critical Out-of-Bounds Read Vulnerability in Citrix NetScaler ADC and Gateway Yes True
CVE-2025-55182 Meta React Server Components Critical Remote Code Execution vulnerability in Meta React Server Components Yes True
CVE-2025-34037 Linksys E-Series Routers Critical OS Command Injection Vulnerability in Linksys E-Series Routers Yes False
CVE-2025-31324 SAP NetWeaver Critical Unrestrited File Upload vulnerability in SAP NetWeaver Yes True
CVE-2025-30208 Vite High Sensitive Information Disclosure vulnerability in Vite No False
CVE-2025-22457 Ivanti Connect Secure, Policy Secure, and ZTA Gateways High Stack-Based Buffer Overflow vulnerability in Ivanti Connect Secure, Policy Secure, and ZTA Gateways Yes True
CVE-2024-8503 VICIdial High SQL injection vulnerability in VICIdial No False
CVE-2024-7954 SPIP High Improper Access Control vulnerability in the porte_plume plugin used by SPIP No False

Which vulnerabilities were abused by malware this week?

Active malware campaigns exploited specific vulnerabilities to deliver payloads and carry out post-exploitation actions. Each targeted vulnerability is proactively monitored, manually analysed, and mapped to MITRE ATT&CK tactics and techniques. Insights are derived from the LOVI vulnerability intelligence platform, which aggregates and curates data from multiple sources, OSINT groups, blogs, and data leak sites.

China-Linked QTFY Exploits Known Vulnerabilities to Breach US Critical Infrastructure

According to a joint FBI, NSA, and Cyber National Mission Force advisory published on August 26, 2026, a China-linked hacking group tracked as QTFY targeted military and critical infrastructure across the United States and abroad. The advisory attributed the group to a Nanjing-based company with ties to China's Ministry of State Security and reported that QTFY operated since 2018. QTFY developed offensive platforms named QScan, QTRouter, and QTBotnet to scan for vulnerabilities, obfuscate its location through compromised devices, and exploit victim networks. The group targeted the defense industrial base, telecommunications, government, energy, and higher education, and exploited a long list of known vulnerabilities to gain access. The authoring agencies urged organizations to apply updates, isolate critical systems from edge devices, and hunt for the listed indicators of compromise.

Chinese-Speaking UAT-10147 Deployed SPECTRE Implant to Bypass EDR and Backdoor IIS and Linux Servers

According to Cisco Talos research published on August 20, 2026, a Chinese-speaking intrusion group tracked as UAT-10147 deployed a new cross-platform backdoor named SPECTRE against internet-facing IIS and Linux servers. Talos reported that SPECTRE combined command-and-control operations, process injection, credential theft, and anti-analysis protections across both Windows and Linux builds. The Windows version neutralized endpoint detection and response products through a Bring Your Own Vulnerable Driver technique that abused two known vulnerable drivers, while the Linux version loaded a kernel rootkit named Specter to hide processes and maintain persistence across reboots. UAT-10147 paired SPECTRE with SEO fraud utilities, privilege escalation tools, and commodity backdoors including QuasarRAT, Meterpreter, Noodle RAT, and Gh0stCringe. Talos also assessed with medium confidence that the group used AI-assisted development to help build both SPECTRE and the Specter rootkit.

Vulnerabilities Severity Title Patch Abused By Malware OSS
CVE-2026-1731 Critical OS Command Injection vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) Yes QTFY group False
CVE-2025-31161 Critical Authentication Bypass vulnerability in CrushFTP Yes QTFY group False
CVE-2024-8190 High OS Command Injection vulnerability in Ivanti Cloud Services Appliance Yes QTFY group False
CVE-2024-8963 Critical Path Traversal vulnerability in Ivanti Cloud Services Appliance (CSA) Yes QTFY group False
CVE-2024-9380 High OS Command Injection vulnerability in Ivanti Cloud Services Appliance (CSA) Yes QTFY group False
CVE-2024-24919 High Information Disclosure vulnerability in Check Point Quantum Security Gateways Yes QTFY group False
CVE-2023-22515 Critical Broken Access Control vulnerability in Atlassian Confluence Data Center and Server Yes QTFY group False
CVE-2022-0847 High Privilege Escalation vulnerability in Linux Kernel Yes UAT-10147 True
CVE-2022-0995 High Out-of-Bounds Write vulnerability in Linux Kernel Yes UAT-10147 True
CVE-2022-27925 High Arbitrary File Upload vulnerability in Synacor Zimbra Collaboration Suite (ZCS) Yes UAT-10147 False
CVE-2021-3156 High Heap-Based Buffer Overflow vulnerability in Sudo Yes UAT-10147 True
CVE-2021-21551 High Insufficient Access Control vulnerability in Dell dbutil Driver Yes UAT-10147
SPECTRE
False
CVE-2021-23758 Critical Deserialization of Untrusted Data vulnerability in Ajax.NET Professional Yes UAT-10147 True
CVE-2021-26855 Critical Remote Code Execution vulnerability in Microsoft Exchange Server Yes QTFY group False
CVE-2021-29441 Critical Authentication Bypass by Spoofing vulnerability in Nacos Yes QTFY group True
CVE-2021-29442 High Missing Authentication for Critical Function vulnerability in Nacos Yes UAT-10147 True
CVE-2021-44228 Critical Remote Code Execution vulnerability in Apache Log4j2 Yes QTFY group True
CVE-2020-5902 Critical Remote Code Execution vulnerability in F5 BIG-IP Traffic Management User Interface (TMUI) Yes QTFY group False
CVE-2019-10068 Critical Deserialization of Untrusted Data vulnerability in Kentico Xperience Yes QTFY group False
CVE-2019-11510 Critical Arbitrary File Read vulnerability in Ivanti Pulse Connect Secure Yes QTFY group True
CVE-2019-18935 Critical Deserialization of Untrusted Data vulnerability in Progress Telerik UI for ASP.NET AJAX Yes UAT-10147 False
CVE-2019-16098 High Out-of-Bounds Read and Write vulnerability in the driver in Micro-Star MSI Afterburner Yes UAT-10147
SPECTRE
False
CVE-2019-19781 Critical Code Execution vulnerability in Citrix ADC, Gateway, and SD-WAN WANOP Appliance Yes QTFY group False
CVE-2018-13379 Critical Path Traversal vulnerability in Fortinet FortiOS SSL VPN Yes QTFY group False
CVE-2015-3246 Medium Race Condition Vulnerability in Red Hat Libuser Yes UAT-10147 True
CVE-2015-5287 High Privilege Escalation vulnerability in Red Hat Automatic Bug Reporting Tool Yes UAT-10147 True
CVE-2010-3904 High Improper Input Validation vulnerability in Linux Kernel Yes UAT-10147 True

What were the most trending OSS vulnerabilities this week?

Open-Source Software (OSS) vulnerabilities are security weaknesses discovered in publicly available codebases that can be exploited across widely used libraries, frameworks, and tools, often impacting thousands of downstream applications.

CVE-ID Title Ecosystem
CVE-2026-61539 Remote Code Execution vulnerability in Xinference PyPI
CVE-2026-64849 Server-Side Request Forgery vulnerability in MLflow Bitnami
CVE-2022-0995 Out-of-Bounds Memory Write vulnerability in Linux kernel Ubuntu
CVE-2022-38181 Use-after-free vulnerability in evictable memory of the Arm Mali GPU kernel driver Android
CVE-2026-53359 Use-After-Free vulnerability in Linux Kernel SUSE

Were any PRE-NVD vulnerabilities identified this week?

PRE-NVD vulnerabilities refer to security flaws that are discovered, discussed, or even exploited in the wild before their official inclusion in the National Vulnerability Database (NVD). These early-stage vulnerabilities often emerge through threat actor chatter, exploit proof-of-concepts, and technical disclosures shared across social media platforms and underground forums, signaling potential exploitation risks before public awareness.

CVE-ID Type of vulnerability Product Reference
CVE-2026-53710 Sandbox Escape IBM mcp-context-forge Resource
CVE-2026-78332 Stored Cross-Site Scripting NethServer WebTop Resource
CVE-2026-55253 NoSQL Injection MongoDBSaver.list() Resource
CVE-2026-55451 Prototype pollution js2i18next() Resource
CVE-2026-54688 Server-Side Request Forgery SearXNG MCP Server Resource

Conclusion

The past week reinforced a clear trajectory: adversaries moved from disclosure to mass exploitation in days, leaned on unpatched legacy software, and sustained state-aligned targeting of critical infrastructure. Defenders should prioritize the newly listed KEV vulnerabilities, patch internet-facing web platforms and plugins without delay, and treat edge appliances as primary targets. The convergence of AI-accelerated exploitation and decade-old flaws in the same reporting window signaled that both currency and hygiene now determined resilience. Loginsoft Vulnerability Intelligence (LOVI) continued to track these developments in real time, delivering the structured, source-anchored intelligence organizations needed to stay ahead of active threats.

FAQs

1) What is Gitea?

Gitea is a free, open-source, self-hosted Git service used to manage source code repositories, similar in function to GitHub or GitLab. It is lightweight and written in Go, which lets organizations run their own code-hosting platform on modest hardware while keeping repositories, issue tracking, and CI/CD workflows within their own infrastructure. Its self-hosted nature makes it popular with teams that need full control over their code, though internet-facing instances become attractive targets when vulnerabilities emerge.

2) What is TrueConf Server?

TrueConf Server is a self-hosted video conferencing and unified communications platform that provides video calls, messaging, and collaboration entirely on an organization's own infrastructure. It is designed for environments that require on-premises deployment for privacy or regulatory reasons, operating without reliance on external cloud services. Because it is internet-facing and handles real-time communications for enterprises and government bodies, exposed or unpatched instances present a meaningful attack surface.

3) Does inclusion in the CISA KEV catalog mean exploitation is widespread?

Not necessarily widespread - but confirmed. KEV inclusion indicates verified in-the-wild exploitation. While the scale may vary, the operational reality is that threat actors possess working exploits, making patch prioritization urgent regardless of observed targeting volume.

4) How does LOVI help organizations manage vulnerabilities effectively?

Loginsoft Vulnerability Intelligence empowers you to efficiently prioritize and respond to potential vulnerabilities by focusing on those actively exploited in the wild. LOVI correlates vulnerability data with real-world threat activity to reduce noise and improve decision-making. This approach enables faster remediation and stronger security posture.

5) What is Cytellite?

Cytellite is a Loginsoft security intelligence platform that provides real-time visibility into emerging threats through a global sensor network. It delivers actionable IP intelligence to help organizations detect, analyze, and respond to attacks quickly. By correlating threat data with live activity, Cytellite strengthens resilience across dynamic threat landscapes.

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