Windows Kernel: Untrusted pointer dereference allows local privilege escalation
Summary
An untrusted pointer dereference in the Windows kernel allows an attacker with local access and a low-privileged account to elevate privileges. Exploitation requires no user interaction, and the scope-changed flag means the impact can extend beyond the vulnerable component. Microsoft rates the flaw CVSS 3.1 8.8 (High), and no known exploitation was reported at publication.
Affected
- Windows 11 Version 24H2: 10.0.26100.0 to before 10.0.26100.9974
- Windows 11 Version 25H2: 10.0.26200.0 to before 10.0.26200.9974
- Windows 11 Version 26H1: 10.0.28000.0 to before 10.0.28000.3501
- Windows 11 Version 26H2: 10.0.26300.0 to before 10.0.26300.9974 (range from a secondary source, not yet confirmed by MSRC)
- Windows 10, Windows Server and other products: Unknown.
Fixed in
- Windows 11 24H2: build 10.0.26100.9974 or later
- Windows 11 25H2: build 10.0.26200.9974 or later
- Windows 11 26H1: build 10.0.28000.3501 or later
- Windows 11 26H2: build 10.0.26300.9974 or later (not yet confirmed by MSRC)
- Corresponding November 2026 cumulative update. KB number: Unknown (not verified).
Workaround
Unknown. No vendor-published workaround was found; applying the update is the mitigation.
Exploitation
- No evidence of in-the-wild exploitation found.
- No public proof-of-concept found.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
- Microsoft CVSS vector: E:U (exploit code maturity unproven), RC:C (report confidence confirmed).
Our recommendation
- Install the November 2026 cumulative update on all affected Windows 11 endpoints, starting with multi-user workstations and RDS or terminal servers.
- Verify the installed build numbers against the MSRC advisory before rollout.
- Limit local accounts and restrict who can log on locally to shared systems.
- Monitor for public proof-of-concept releases or a CISA KEV entry and prioritise accordingly.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Update Guide: CVE-2026-112805 msrc.microsoft.com
- CVE.org record CVE-2026-112805 www.cve.org
- Strix AI CVE entry CVE-2026-112805 (secondary) www.strix.ai
- Senserva KB 5132061 (secondary, unverified) 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 10 Nov 2026, 22:47.
Original description (NVD)
Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges 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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