CVE-2025-27740 describes a high-severity weak authentication vulnerability in Windows Active Directory Certificate Services, impacting multiple Windows Server versions from 2008 to 2025. An authenticated attacker can exploit this over the network with low complexity to achieve full compromise (confidentiality, integrity, availability) and elevate privileges. While not yet in the KEV catalog, its high CVSS score of 8.8 and mention in a recent Patch Tuesday article indicate significant risk, despite no public exploit code or widespread community discussion currently.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2008:*:sp2:*:*:*:*:x64:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:* | ||
r2CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | ||
r2CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.