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CVE-2025-53778 · Windows NTLM Elevation of Privilege Vulnerability

Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.

Severity
Critical
Impact
Elevation of Privilege
CVSS
8.8 base · 7.7 temporal
Release
2025-08-12
Signals
Windows NTLM Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation More Likely
CWE
CWE-287: Improper Authentication
Patch Diff
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Description
Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.
FAQ / Articles
FAQ
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
Windows NTLM Elevation of Privilege Vulnerability
Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges locally.
Windows NTLM Elevation of Privilege Vulnerability
Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.