Microsoft Windows Camera Frame Server Monitor: Use after free allows privilege escalation
Summary
A use-after-free vulnerability (CWE-416) in the Windows Camera Frame Server Monitor component allows an authorized local attacker to elevate privileges. The attacker needs a low-privileged account or code already running on the system. The vendor rates the issue as High severity with CVSS 3.1 score 7.8. CISA SSVC lists exploitation as none and automatable as no.
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 (secondary source, unverified)
- Windows Server 2025 and Server Core installation: 10.0.26100.0 to before 10.0.26100.33822 (secondary source, unverified)
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 (to be confirmed on the MSRC page)
- Windows Server 2025: 10.0.26100.33822 or later (to be confirmed on the MSRC page)
- Fix included in the November 2026 Patch Tuesday cumulative updates. KB numbers: see MSRC advisory.
Workaround
Unknown.
Exploitation
- No exploitation confirmed by the vendor or CISA at the time of writing.
- VulDB reports no available exploit.
- No public proof of concept found.
- This CVE is not the one flagged as actively exploited on November 2026 Patch Tuesday, according to press reports.
Our recommendation
- Confirm the exact fixed build for each Windows version on the MSRC advisory page.
- Install the November 2026 cumulative update on Windows 11 24H2/25H2/26H1/26H2 and Windows Server 2025 endpoints, starting with shared and high-risk machines.
- Verify that the October 2026 update for the same component (CVE-2026-83771) is also installed.
- Limit local accounts and remove unnecessary admin rights to reduce the risk of a low-privileged foothold.
- Recheck the NVD record once analysis is complete and monitor for exploit reports.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- MSRC Security Update Guide: CVE-2026-88232 msrc.microsoft.com
- CVE Record CVE-2026-88232 www.cve.org
- VulDB CVE-2026-88232 vuldb.com
- Microsoft November 2026 Patch Tuesday (BleepingComputer) www.bleepingcomputer.com
- Microsoft November 2026 Patch Tuesday (NTCompatible) www.ntcompatible.com
- CVE-2026-83771 (Vulners) vulners.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, 03:18.
Original description (NVD)
Use after free in Windows Camera Frame Server Monitor 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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