CVE-2026-68874: Windows Program Compatibility Assistant Service Information Disclosure Vulnerability
Out-of-bounds read in Windows Program Compatibility Assistant Service allows an authorized attacker to disclose information over a network.
Other sources
Windows Program Compatibility Assistant Service Information Disclosure Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 6.2.9200.26349Patch KB5123065 - Upgrade
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Fixed in 10.0.14393.9512Patch KB5123099 - Upgrade
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Fixed in 6.3.9600.23397Patch KB5123066 - 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
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Fixed in 10.0.26200.9445Patch KB5124008 - Upgrade
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Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
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Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
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Fixed in 10.0.19045.7725Patch KB5122878 - Upgrade
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Fixed in 10.0.20348.5622Patch KB5122882 - Upgrade
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Fixed in 10.0.17763.9245Patch KB5122876 - Upgrade
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Fixed in 10.0.19044.7725Patch KB5122878
Event History
Frequently Asked Questions
Which systems are in scope for triage?
The affected software list includes Microsoft Windows 10, Windows 11, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025.
What would an attacker need to exploit this issue?
The attacker must already be authorized, can attack over the network, and requires user interaction. The attack complexity is rated low.
What is the expected security impact?
The issue can result in high confidentiality impact. No integrity or availability impact is indicated, and the scope is unchanged.