Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation More Likely. Customer action: Required.
Details
What type of information could be disclosed by this vulnerability?
Exploiting this vulnerability could allow the disclosure of certain memory address within kernel space. Knowing the exact location of kernel memory could be potentially leveraged by an attacker for other malicious activities.
Security updates
10.0.17763.7792 — https://support.microsoft.com/help/5065428
10.0.20348.4171 — https://support.microsoft.com/help/5065432
10.0.20348.4106 — https://support.microsoft.com/help/5065306
10.0.19044.6332 — https://support.microsoft.com/help/5065429
10.0.22621.5909 — https://support.microsoft.com/help/5065431
10.0.26100.6584 — https://support.microsoft.com/help/5065426
10.0.26100.6508 — https://support.microsoft.com/help/5065474
10.0.25398.1849 — https://support.microsoft.com/help/5065425
10.0.10240.21128 — https://support.microsoft.com/help/5065430
10.0.14393.8422 — https://support.microsoft.com/help/5065427
6.2.9200.25675 — https://support.microsoft.com/help/5065509
6.3.9600.22774 — https://support.microsoft.com/help/5065507
Vulnerabilities 1
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Medium 5.5
Windows Kernel Memory Information Disclosure Vulnerability
Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.
Revision history
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#1
Information published.
References
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CVE-2025-53803 Windows Kernel Memory Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53803
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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