These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
CVE-2026-21513 is a Microsoft Windows MSHTML Framework Protection Mechanism Failure vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2026-02-10. Because it is listed in KEV, defenders should treat it as actively exploited risk and prioritize Microsoft’s guidance for affected Windows systems.
CVE-2026-21510 is a Microsoft Windows vulnerability named "Microsoft Windows Shell Protection Mechanism Failure Vulnerability" and listed by CISA in the Known Exploited Vulnerabilities catalog on 2026-02-10. Because it is in KEV, defenders should treat it as urgent even though the supplied corpus does not include deeper technical details or a CVSS score. CISA’s required action is to apply mitigations per [truncated]
CVE-2026-21509 is a Microsoft Office security feature bypass vulnerability that CISA added to its Known Exploited Vulnerabilities (KEV) catalog on 2026-01-26. The available source material is limited: it confirms KEV status and points to Microsoft and NVD records, but does not provide technical exploitation details or a CVSS score. CISA’s guidance emphasizes applying Microsoft’s mitigations, using interim [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-23T02:15:55.547Z and has not been modified since then. CVE-2026-24304 is a critical vulnerability in Azure Resource Manager due to improper access control, allowing an authorized attacker to elevate privileges over a network. The CVSS score is 9.9, indicating a high severity. Limited information ava [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:25.053Z and has not been modified since then. The NVD entry is currently Analyzed. Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB, which are approaching expiration. The operating system's certificate update protection mechanism relies on firmware components that mi [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:24.723Z and has not been modified since then. CVE-2026-21221 is a high-severity vulnerability classified as CWE-362 and CWE-416, caused by a race condition in the Capability Access Management Service (camsvc) on Windows systems. This vulnerability allows an authorized local attacker to elev [truncated]
The CVE-2026-20962 vulnerability, classified as a use of uninitialized resource in Dynamic Root of Trust for Measurement (DRTM), poses a medium-severity risk with a CVSS score of 4.4. This vulnerability allows an authorized local attacker to disclose information. The CVE record was published on 2026-01-13T18:16:24.093Z. System administrators and security teams should be aware of this vulnerability, especi [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:21.530Z and has not been modified since then. CVE-2026-20941 is a high-severity vulnerability in the Host Process for Windows Tasks, allowing authorized attackers to elevate privileges locally through improper link resolution before file access. The vulnerability has a CVSS score of 7.8 and [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:21.313Z and has not been modified since then. The CVE-2026-20940 vulnerability is a heap-based buffer overflow in the Windows Cloud Files Mini Filter Driver. This vulnerability allows an authorized attacker to elevate privileges locally. The vulnerability affects multiple versions of Window [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:20.980Z and has not been modified since then. The vulnerability is caused by an untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave, which allows an authorized attacker to elevate privileges locally. The CVSS score is 7.8 with a severity of HIGH. This vulner [truncated]
An AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:20.820Z and has not been modified since then. The NVD entry is currently Analyzed. This vulnerability, CVE-2026-20937, is an exposure of sensitive information to an unauthorized actor in Windows File Explorer, allowing an authorized attacker to disclose information locally. The vulnerabi [truncated]
The CVE-2026-20936 vulnerability is an out-of-bounds read issue in Windows NDIS. An authorized attacker could exploit this vulnerability with a physical attack to disclose sensitive information. The vulnerability has a CVSS score of 4.3 and a CVSS vector of CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. Affected products include Windows 10, Windows 11, and Windows Server versions. This vulnerability is par [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:20.500Z and has not been modified since then. The CVE-2026-20935 vulnerability involves an untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave, allowing an unauthorized attacker to disclose information locally. This issue has a CVSS score of 6.2, indicating [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:20.333Z and has not been modified since then. The NVD entry is currently Analyzed. This high-severity vulnerability, CVE-2026-20934, is caused by a race condition in Windows SMB Server, allowing authorized attackers to elevate privileges over a network. It affects multiple Windows versions, [truncated]
An AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:20.170Z and has not been modified since then. The NVD entry is currently Analyzed. This vulnerability, CVE-2026-20932, involves the exposure of sensitive information to an unauthorized actor in Windows File Explorer, allowing an authorized attacker to disclose information locally. The vu [truncated]
A privilege escalation vulnerability in the Windows Telephony Service allows an authorized attacker with local access and adjacent network positioning to elevate privileges. The flaw stems from external control of file name or path (CWE-73), enabling a low-privileged attacker to achieve high-impact confidentiality, integrity, and availability compromises without user interaction. The vulnerability affects [truncated]
The CVE-2026-20929 vulnerability is a HIGH-rated issue in Windows HTTP.sys that allows an authorized attacker to elevate privileges over a network. This vulnerability affects multiple versions of Windows 10, Windows 11, and Windows Server. The CVE record was published on 2026-01-13T18:16:19.827Z and has not been modified since then. System administrators and security teams should prioritize patching and m [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:19.650Z and has not been modified since then. This medium-severity vulnerability, CVE-2026-20927, exists in the Windows SMB Server and allows an authorized attacker to deny service over a network due to a race condition with improper synchronization. The vulnerability can be exploited by an [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:19.423Z and has not been modified since then. CVE-2026-20926 is a race condition vulnerability in Windows SMB Server that allows an authorized attacker to elevate privileges over a network. The vulnerability affects multiple versions of Windows 10, Windows 11, and Windows Server editions. M [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:19.200Z and has not been modified since then. The vulnerability exists in Windows NTLM, allowing an unauthorized attacker to perform spoofing over a network due to external control of file name or path. Organizations using affected Windows systems, particularly those with internet exposure, [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:19.027Z and has not been modified since then. The CVE-2026-20924 vulnerability is a use-after-free issue in Windows Management Services that could allow an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. Affect [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:18.837Z and has not been modified since then. The vulnerability, CVE-2026-20923, is a use-after-free issue in Windows Management Services, allowing authorized attackers to elevate privileges locally. This affects multiple Windows versions and configurations, including Windows 10, Windows 11 [truncated]
The CVE-2026-20922 vulnerability is a heap-based buffer overflow in Windows NTFS, allowing an authorized attacker to execute code locally. This vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. Affected products include various versions of Windows 10, Windows 11, and Windows Server. System administrators and security teams should review and apply patches or updates to mitigate this [truncated]
A race condition vulnerability in Windows SMB Server allows an authorized attacker to elevate privileges over a network. The flaw stems from concurrent execution using a shared resource with improper synchronization (CWE-362). Microsoft has assigned this a CVSS 3.1 score of 7.5 (HIGH severity). The vulnerability was published on January 13, 2026, with the record last modified on May 26, 2026. Affected pro [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:18.303Z and has not been modified since then. The CVE-2026-20920 vulnerability is a use-after-free issue in Windows Win32K - ICOMP that can be exploited locally to elevate privileges. The affected products include Windows 11 23H2, Windows Server 2022, and Windows Server 2022 23H2. This vuln [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:18.140Z and has not been modified since then. CVE-2026-20919 is a race condition vulnerability in Windows SMB Server that allows an authorized attacker to elevate privileges over a network. The vulnerability has a CVSS score of 7.5 and is classified as HIGH severity. Affected products inclu [truncated]
CVE-2026-20918 is a race condition vulnerability in Windows Management Services that allows an authorized attacker to elevate privileges locally. This vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. The CVE record was published on 2026-01-13T18:16:17.973Z and has not been modified since then. Affected products include various versions of Windows 10, Windows 11, and Windows Server [truncated]
CVE-2026-20877 is a use-after-free vulnerability in Windows Management Services, allowing an authorized attacker to elevate privileges locally. The vulnerability affects multiple Windows versions, including Windows 10, Windows 11, and Windows Server editions. Microsoft has provided a CVSS score of 7.8, rating it as HIGH severity. The CVE record was published on 2026-01-13T18:16:17.813Z and has not been mo [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:17.650Z and has not been modified since then. CVE-2026-20876 is a heap-based buffer overflow vulnerability in Windows Virtualization-Based Security (VBS) Enclave. An authorized attacker can exploit this vulnerability locally to elevate privileges. The vulnerability has a CVSS score of 6.7 a [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:17.483Z and has not been modified since then. The CVE-2026-20875 vulnerability is a null pointer dereference in the Windows Local Security Authority Subsystem Service (LSASS). This vulnerability allows an unauthorized attacker to deny service over a network. The Common Vulnerability Scoring [truncated]