Summary
Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What privileges would an attacker gain by successfully exploiting this vulnerability?
An attacker who successfully exploited this vulnerability could potentially leak data from the target enclave or execute code within the context of the target enclave.
Are there any additional steps that I need to follow to be protected from this vulnerability?
The changes to address this vulnerability updated Virtual Secure Mode components. The policy described in Guidance for blocking rollback of Virtualization-based Security (VBS) related security updates has been updated to account for the latest changes. If you deployed this policy, then you'll need to redeploy using the updated policy.
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to prepare the target environment to improve exploit reliability.
Security updates
10.0.26200.6899 — https://support.microsoft.com/help/5066835
10.0.22621.6060 — https://support.microsoft.com/help/5066793
Vulnerabilities 1
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High 7.0
Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
Reliance on untrusted inputs in a security decision in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
Revision history
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#1
Information published.
References
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CVE-2025-53717 Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53717
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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