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CVE-2026-69947 Heap-based buffer overflow in Windows Overlay Filter allows an unauthorized attacker to execute code with a physical…

Description

Heap-based buffer overflow in Windows Overlay Filter allows an unauthorized attacker to execute code with a physical attack.

Affected products and versions

Product	Affected versions	Fixed in
Windows 10 Version 21H2 10.0	10.0.19044.0 → < 10.0.19044.7807	10.0.19044.7807
Windows 10 Version 22H2 10.0	10.0.19045.0 → < 10.0.19045.7807	10.0.19045.7807
Windows 11 Version 23H2 10.0	10.0.22631.0 → < 10.0.22631.7652	10.0.22631.7652
Windows 11 Version 24H2 10.0	10.0.26100.0 → < 10.0.26100.9711	10.0.26100.9711
Windows 11 Version 25H2 10.0	10.0.26200.0 → < 10.0.26200.9711	10.0.26200.9711
Windows 11 version 26H1 10.0	10.0.28000.0 → < 10.0.28000.3231	10.0.28000.3231
Windows 11 Version 26H2 10.0	10.0.26300.0 → < 10.0.26300.9711	10.0.26300.9711
Windows Server 2022 10.0	10.0.20348.0 → < 10.0.20348.5761	10.0.20348.5761
Windows Server 2025 10.0	10.0.26100.0 → < 10.0.26100.33650	10.0.26100.33650

Show the other branch

Product	Affected versions	Fixed in
Windows Server 2025 (Server Core installation) 10.0	10.0.26100.0 → < 10.0.26100.33650	10.0.26100.33650

References

Windows Overlay Filter Remote Code Execution Vulnerability msrc.microsoft.com

Timeline

Published October 13, 2026
Last modified October 31, 2026

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