Microsoft Windows Management Services: Information disclosure via use after free
Summary
A use-after-free vulnerability (CWE-416) in Windows Management Services allows an authorized local attacker to disclose information. Exploitation requires local access with low privileges and a high attack complexity. Impact is limited to confidentiality; integrity and availability are not affected according to the CVSS vector.
Affected
- Windows 10 Version 21H2 before 10.0.19044.7846
- Windows 10 Version 22H2 before 10.0.19045.7846
- Windows 11 Version 23H2 before 10.0.22631.7711
- Windows 11 Version 24H2 before 10.0.26100.9974 or 10.0.26100.33822 (sources conflict, verify on MSRC)
- Windows 11 Version 25H2 before 10.0.26200.9974
- Windows 11 Version 26H1 before 10.0.28000.3501
- Windows 11 Version 26H2 before 10.0.26300.9974
- Windows Server 2022 before 10.0.20348.5870
- Windows Server 2025 (including Server Core) before 10.0.26100.33822
Fixed in
- Security update of the November 10, 2026 Patch Tuesday, for example KB5132059 for Windows 11 26H1 (OS Build 28000.3501)
- Windows 10 ESU update: KB number unknown
- Exact fixed builds for some products need verification on the MSRC advisory
Workaround
- Unknown. No vendor workaround identified; patching is the practical remediation.
Exploitation
- Microsoft exploitability assessment: Exploitation Less Likely; no public disclosure.
- No confirmed in-the-wild exploitation reported.
- No public proof of concept known.
- CISA SSVC: exploitation none, not automatable, partial technical impact.
Our recommendation
- Install the November 2026 security updates on all affected Windows systems, including Windows 10 ESU devices.
- Prioritise multi-user systems such as terminal servers, shared workstations and hosts where service accounts are exposed.
- Verify the exact fixed build number on the MSRC advisory before reporting compliance.
- Include the update in the regular monthly patch cycle; no internet-facing exposure is indicated.
Information from Microsoft (Patch Tuesday November 2026)
- Severity (Microsoft)
- Important
- Impact
- Information disclosure – Windows Management Services
- Status on Patch Tuesday
- Neither exploited nor publicly disclosed
- Exploitability assessment
- Exploitation less likely
- Product family
- Windows, Windows ESU (Extended Security Updates)
- Updates (KB)
- KB5131096, KB5131090, KB5131087, KB5132061, KB5132043, KB5131080
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- MSRC Security Update Guide: CVE-2026-119836 msrc.microsoft.com
- CVE.org CVE Record www.cve.org
- Microsoft KB5132059 Windows 11 26H1 security update support.microsoft.com
- Microsoft KB5132061 Windows 11 24H2/25H2/26H2 security update support.microsoft.com
- Rapid7 Patch Tuesday November 2026 www.rapid7.com
- Senserva KB5132059 overview senserva.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 20:52.
Original description (NVD)
Use after free in Windows Management Services allows an authorized attacker to disclose information locally.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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