Windows Advanced Rasterization Platform: Use after free for local privilege escalation
Summary
A use-after-free flaw (CWE-416) in the Windows Advanced Rasterization Platform component allows an authorized local user to elevate privileges. The attacker needs a low-privilege foothold on the system first, and the attack is rated high-complexity. The impact is high on confidentiality, integrity and availability, with a CVSS score of 7.8 (NVD analysis still pending).
Affected
- Windows 10 Version 1809: before 10.0.17763.9376
- Windows 10 Version 21H2: before 10.0.19044.7807
- Windows 10 Version 22H2: before 10.0.19045.7807
- Windows 11 Version 23H2: before 10.0.22631.7652
- Windows 11 Version 24H2: before 10.0.26100.9711
- Windows 11 Version 25H2: before 10.0.26200.9711 (from Strix.ai, not confirmed by Microsoft)
- Windows 11 Version 26H1: before 10.0.28000.3231
- Windows 11 Version 26H2: before 10.0.26300.9711
- Windows Server 2019 (incl. Server Core): before 10.0.17763.9376 (Server entry from Strix.ai, not confirmed by Microsoft)
- Windows Server 2022: before 10.0.20348.5761 (from Strix.ai, not confirmed by Microsoft)
- Windows Server 2025 (incl. Server Core): before 10.0.26100.33650 (from Strix.ai, not confirmed by Microsoft)
Fixed in
- Security update from Microsoft's November 2026 Patch Tuesday (released 10 November 2026)
- Check the MSRC advisory for the exact fixed build per product and the KB numbers.
Workaround
Unknown.
Exploitation
- No public exploit code known at the time of the CVE record (E:U).
- Not listed among the actively exploited flaws of the November 2026 release.
- CISA SSVC: exploitation none, automatable no, technical impact total.
Our recommendation
- Deploy the November 2026 cumulative update to all supported Windows 10, Windows 11 and Windows Server systems, starting with workstations and servers where users are not administrators.
- Verify the exact fixed builds against the MSRC advisory, especially the Server and Windows 11 25H2 entries.
- Restrict local logon and limit admin rights to reduce the risk of a low-privilege foothold being escalated.
Information from Microsoft (Patch Tuesday November 2026)
- Severity (Microsoft)
- Important
- Impact
- Elevation of privilege – Windows Advanced Rasterization Platform
- Status on Patch Tuesday
- Neither exploited nor publicly disclosed
- Exploitability assessment
- Exploitation less likely
- Product family
- Windows, Windows ESU (Extended Security Updates)
- Updates (KB)
- KB5126651, KB5126657, KB5126655, KB5126653, KB5127648, KB5126646
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Update Guide: CVE-2026-105022 msrc.microsoft.com
- CVE Record CVE-2026-105022 (CVE.org) www.cve.org
- Strix.ai: CVE-2026-105022 (unverified entries) www.strix.ai
- TrinetriOps: November 2026 Patch Tuesday trinetriops.com
- NTCompatible: November 2026 Patch Tuesday (one exploited flaw) www.ntcompatible.com
- Zero Day Initiative: November 2026 Security Update Review www.zerodayinitiative.com
- Rapid7: Patch Tuesday November 2026 (Exposure Management) www.rapid7.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, 04:41.
Original description (NVD)
Use after free in Windows Advanced Rasterization Platform 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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