Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is one byte of kernel memory could be leaked back to the attacker.
Security updates
10.0.26100.33296 — https://support.microsoft.com/help/5120233
10.0.26100.33222 — https://support.microsoft.com/help/5120228
10.0.26200.9168 — https://support.microsoft.com/help/5121003
10.0.26200.9106 — https://support.microsoft.com/help/5120994
10.0.28000.2704 — https://support.microsoft.com/help/5121000
Vulnerabilities 1
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Medium 5.5
Windows DWM Core Library Information Disclosure Vulnerability
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
Revision history
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#1
Information published.
References
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CVE-2026-61933 Windows DWM Core Library Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61933
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss