Windows Graphics Kernel: Use-after-free allows local privilege escalation
Summary
A use-after-free flaw in the Windows Graphics Kernel allows an authorized local attacker to elevate privileges. The attacker needs low privileges and a foothold on the system, for example through phishing or a malicious local program. Exploitation needs high attack complexity, no user interaction, and the impact is high on confidentiality, integrity and availability.
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
- Windows Server 2025 (including Server Core): 10.0.26100.0 to before 10.0.26100.33822
- Windows 10 and older Windows Server versions: no evidence found, not confirmed as affected
Fixed in
- Windows 11 24H2: 10.0.26100.9974 or later
- Windows 11 25H2: 10.0.26200.9974 or later
- Windows 11 26H1: 10.0.28000.3501 or later
- Windows 11 26H2: 10.0.26300.9974 or later
- Windows Server 2025: 10.0.26100.33822 or later
Build numbers are taken from the CVE record; the cumulative update KB numbers are not confirmed and must be checked in the MSRC Security Update Guide.
Workaround
Unknown. No vendor-documented workaround was found. Applying the security update is the practical remedy.
Exploitation
- No in-the-wild exploitation reported.
- No public proof of concept known for this CVE.
- CISA SSVC: exploitation none, not automatable, technical impact total.
- CVSS exploit maturity: unproven (E:U).
Our recommendation
- Patch affected Windows 11 and Windows Server 2025 systems with the next cumulative security update, with priority on multi-user systems, terminal servers and RDS hosts.
- Check the device inventory for the actual build numbers and compare them with the fixed builds.
- Verify the fixed builds and KB numbers in the MSRC Security Update Guide before rollout.
- Limit local logon rights and monitor for unusual privilege changes on shared systems.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE.org record CVE-2026-94519 www.cve.org
- Microsoft Security Update Guide CVE-2026-94519 msrc.microsoft.com
- Strix CVE-2026-94519 www.strix.ai
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, 08:08.
Original description (NVD)
Use after free in Windows Graphics 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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