Vulnerability · Published Apr 8, 2025 · Assigned by microsoft
CVE-2025-27740Active Directory Certificate Services Elevation of Privilege Vulnerability
High 8.8
In plain English
A high-severity security flaw in Windows Server 2008 R2 Service Pack 1 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.5% (higher than 89% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)3.5%top 10.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
Weak authentication in Windows Active Directory Certificate Services allows an authorized attacker to elevate privileges over a network.
Affected products (as reported)
Weakness: CWE-1390 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Active Directory Certificate Services Elevation of Privilege Vulnerability vendor-advisory, patch