CVE-2026-69959: Windows Overlay Filter Remote Code Execution Vulnerability
Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to execute code locally.
Other sources
Windows Overlay Filter Remote Code Execution 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 6.2.9200.26434Patch KB5126835 - Upgrade
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Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
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Fixed in 10.0.20348.5761Patch KB5126655
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker must already be authorized on the affected system and able to execute code locally. The available data does not indicate that the vulnerability is exploitable remotely over the network.
What is the likely impact if exploitation succeeds?
Successful exploitation can allow code execution and is rated for high confidentiality, integrity, and availability impact. The vulnerability has a CVSS severity of 7.8 (High).
Which systems should be prioritized for review?
Review Microsoft Windows 10 and Windows 11 endpoints, along with Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025 systems. Systems where lower-privileged authorized users can obtain local access are particularly relevant to triage.