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MSRC compact vulnerability detail

CVE-2025-53723 · Windows Hyper-V Elevation of Privilege Vulnerability

Numeric truncation error in Windows Hyper-V allows an authorized attacker to elevate privileges locally.

Severity
Important
Impact
Elevation of Privilege
CVSS
7.8 base · 6.8 temporal
Release
2025-08-12
Signals
Role: Windows Hyper-V Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation Less Likely
CWE
CWE-197: Numeric Truncation Error CWE-122: Heap-based Buffer Overflow
Patch Diff
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Description
Numeric truncation error in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
FAQ / Articles
Windows Hyper-V Elevation of Privilege Vulnerability
Numeric truncation error in Windows Hyper-V allows an authorized attacker to elevate privileges over a network.
Windows Hyper-V Elevation of Privilege Vulnerability
Numeric truncation error in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
FAQ
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could overwrite arbitrary file content in the security context of the local system.