CVE-2026-69350: Windows Overlay Filter Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
Other sources
Windows Overlay Filter Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23397Patch KB5123066 - Upgrade
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Fixed in 10.0.17763.9245Patch KB5122876 - Upgrade
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Fixed in 10.0.14393.9512Patch KB5123099 - Upgrade
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Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
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Fixed in 10.0.28000.2954Patch KB5124012 - Upgrade
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Fixed in 10.0.26100.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9445Patch KB5124008 - Upgrade
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Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7725Patch KB5122878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7725Patch KB5122878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running the listed Microsoft Windows client or server products are in scope. Exploitation requires an attacker to already be authorized on the affected system and able to act locally.
What access does an attacker need to exploit it?
The vulnerability is locally exploitable with low attack complexity, requires high privileges, and does not require user interaction. It may allow the authorized attacker to elevate privileges and affect confidentiality, integrity, and availability.
How can we determine whether a system may be affected?
Identify whether the system runs Microsoft Windows 10, Windows 11, Windows Server 2012 R2, 2016, 2019, 2022, or 2025. The provided information does not include affected build numbers or patch identifiers.