These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
CVE-2026-20837 is a heap-based buffer overflow vulnerability in Windows Media that allows an unauthorized attacker to execute code locally. The vulnerability affects multiple versions of Windows 10, Windows 11, and Windows Server. Microsoft has released a vendor advisory for mitigation. Organizations should review their Windows Media configurations and apply patches to mitigate potential code execution ri [truncated]
CVE-2026-20836 is a race condition vulnerability in the Graphics Kernel that allows an authorized attacker to elevate privileges locally. This vulnerability has a CVSS score of 7 and is classified as HIGH severity. The CVE record was published on 2026-01-13T18:16:11.830Z and has not been modified since then. Affected products include various versions of Windows 10, Windows 11, and Windows Server. System a [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:11.660Z and has not been modified since then. This out-of-bounds read vulnerability in the Capability Access Management Service (camsvc) allows an authorized local attacker to disclose information. System administrators and security teams should review and apply patches to prevent local inf [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:11.493Z and has not been modified since then. The CVE-2026-20834 vulnerability is an absolute path traversal issue in Windows Shell that allows an unauthorized attacker to perform spoofing through a physical attack. Organizations using affected versions of Windows should prioritize patching [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:11.150Z and has not been modified since then. The CVE-2026-20832 vulnerability is an elevation of privilege issue in the Windows Remote Procedure Call Interface Definition Language (IDL). The vulnerability affects multiple versions of Windows 10, Windows 11, and Windows Server. Microsoft ha [truncated]
CVE-2026-20831 is a time-of-check time-of-use (toctou) race condition vulnerability in the Windows Ancillary Function Driver for WinSock. This vulnerability allows an authorized attacker to elevate privileges locally. The CVE record was published on 2026-01-13T18:16:10.977Z and has not been modified since then. Affected product deployments should be reviewed for potential exposure. The vulnerability has a [truncated]
The CVE-2026-20829 record describes an out-of-bounds read vulnerability in Windows TPM, allowing an authorized local attacker to disclose information. This vulnerability has a CVSS score of 5.5 and is classified as MEDIUM severity. Affected products include Windows 10, Windows 11, and Windows Server versions. Microsoft has provided a vendor advisory for mitigation. Organizations should prioritize patching [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:10.480Z and has not been modified since then. This CVE-2026-20828 vulnerability is an out-of-bounds read issue in Windows Internet Connection Sharing (ICS), classified as MEDIUM severity with a CVSS score of 4.6. An unauthorized attacker could exploit this vulnerability with a physical atta [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:10.317Z and has not been modified since then. This medium-severity vulnerability in the Tablet Windows User Interface (TWINUI) Subsystem allows local information disclosure. An authorized attacker can exploit this vulnerability to disclose information locally. Affected products include vari [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:10.153Z and has not been modified since then. CVE-2026-20826 is a high-severity vulnerability in the Tablet Windows User Interface (TWINUI) Subsystem, allowing an authorized attacker to elevate privileges locally due to a race condition. Multiple Windows versions are affected, including Win [truncated]
CVE-2026-20825 is a MEDIUM-severity vulnerability in Windows Hyper-V, allowing an authorized local attacker to disclose information due to improper access control. The vulnerability has a CVSS score of 4.4. Affected configurations include various Windows 10, Windows 11, and Windows Server versions. Microsoft has released a vendor advisory for mitigation. System administrators and security teams should rev [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:09.823Z and has not been modified since then. CVE-2026-20824 is a protection mechanism failure in Windows Remote Assistance, allowing local unauthorized attackers to bypass security features. The vulnerability has a CVSS score of 5.5 and is classified as MEDIUM severity. Affected systems in [truncated]
The CVE-2026-20821 vulnerability is related to the exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call. This allows an unauthorized attacker to disclose information locally. The vulnerability has a CVSS score of 6.2 and a vector of CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Various versions of Windows 10, Windows 11, and Windows Server are affected. Organizations [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:09.143Z and has not been modified since then. CVE-2026-20820 is a heap-based buffer overflow vulnerability in the Windows Common Log File System Driver. An authorized attacker can exploit this vulnerability to elevate privileges locally. The vulnerability is considered high severity with a [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:08.983Z and has not been modified since then. CVE-2026-20819 is an untrusted pointer dereference vulnerability in Windows Virtualization-Based Security (VBS) Enclave. An authorized attacker can exploit this vulnerability locally to disclose information. The vulnerability has a CVSS score of [truncated]
CVE-2026-20817 is a local privilege escalation vulnerability in Windows Error Reporting (WER) caused by improper handling of insufficient permissions or privileges. The vulnerability allows an authorized attacker with local access to elevate privileges on affected Windows systems. Microsoft has assigned this a HIGH severity CVSS 3.1 score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating that while [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:08.437Z and has not been modified since then. This CVE-2026-20816 vulnerability is a time-of-check time-of-use (TOCTOU) race condition in Windows Installer, allowing an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 7.8 and is classified as HIGH sev [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:08.273Z and has not been modified since then. CVE-2026-20815 is a race condition vulnerability in the Capability Access Management Service (camsvc) that allows an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 7 and is classified as HIGH severity. A [truncated]
CVE-2026-20814 is a high-severity vulnerability in the Graphics Kernel due to a race condition, allowing an authorized local attacker to elevate privileges. This issue affects various versions of Windows 10, Windows 11, and Windows Server. System administrators and security teams should prioritize patching to prevent potential privilege escalation attacks. The CVE record was published on 2026-01-13T18:16: [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:07.913Z and has not been modified since then. This vulnerability, CVE-2026-20812, is caused by improper input validation in Windows LDAP, allowing authorized attackers to perform tampering over a network. System administrators and security teams should be aware of this vulnerability and ass [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:07.727Z and has not been modified since then. The CVE-2026-20811 vulnerability is caused by an access of resource using incompatible type ('type confusion') in Windows Win32K - ICOMP. This vulnerability allows an authorized attacker to elevate privileges locally. The CVSS score is 7.8, indi [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:07.360Z and has not been modified since then. CVE-2026-20809 is a time-of-check time-of-use (TOCTOU) race condition vulnerability in the Windows Kernel Memory. This vulnerability allows an authorized attacker to elevate privileges locally. The CVSS score is 7.8, indicating a HIGH severity. [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:07.197Z and has not been modified since then. CVE-2026-20808 is a high-severity vulnerability due to a race condition in Printer Association Object, allowing an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 7 and affects various Microsoft Windows v [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T18:16:06.630Z and has not been modified since then. CVE-2026-20803 is a high-severity vulnerability in Microsoft SQL Server 2022 and 2025. The vulnerability, caused by missing authentication for a critical function, allows an authorized attacker to elevate privileges over a network. The CVSS scor [truncated]
CVE-2026-20805 is a Microsoft Windows information disclosure vulnerability that CISA added to the Known Exploited Vulnerabilities catalog on 2026-01-13. Because it is listed in KEV, defenders should treat it as a high-priority remediation item and follow Microsoft’s vendor guidance as soon as possible.
CVE-2025-9611 is a high-severity vulnerability in Microsoft Playwright MCP Server versions prior to 0.0.40. The vulnerability allows an attacker to perform a DNS rebinding attack via a victim's web browser, sending unauthorized requests to a locally running MCP server, and resulting in unintended invocation of MCP tool endpoints. This issue arises from the failure of Microsoft Playwright MCP Server to val [truncated]
CVE-2009-0556 is a Microsoft Office PowerPoint code injection vulnerability that CISA has listed in its Known Exploited Vulnerabilities catalog. For defenders, the key takeaway is not the specific exploit mechanics, but the operational risk: CISA is treating it as a known-exploited issue and directing organizations to apply vendor guidance or otherwise reduce exposure. In the supplied metadata, CISA ties [truncated]
CVE-2025-62557 is a high-severity use-after-free flaw in Microsoft Office that can allow an unauthorized attacker to execute code locally. NVD rates the issue 8.4/High and maps it to CWE-416. The record indicates affected Office families include Microsoft 365 Apps for enterprise, Office 2016, Office 2019, Office LTSC 2021, and Office LTSC 2024 across multiple platforms.
CVE-2025-62554 is a Microsoft Office type confusion issue that can allow an unauthorized attacker to execute code locally. The record is scored CVSS 8.4 (HIGH) and maps to a broad set of Office products, including Office 2016/2019, Office LTSC 2021/2024, Microsoft 365 Apps, and Office on macOS and Android.
CVE-2025-62221 is a Microsoft Windows use-after-free vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2025-12-09. The source corpus does not provide deeper technical detail, but the KEV listing means defenders should treat it as actively exploited and prioritize Microsoft’s guidance and remediation timeline.