CVE-2025-54918

high

Description

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

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54918

https://thehackernews.com/2025/09/microsoft-fixes-80-flaws-including-smb.html

https://cyberscoop.com/microsoft-patch-tuesday-september-2025/

https://www.tenable.com/blog/microsofts-september-2025-patch-tuesday-addresses-80-cves-cve-2025-55234

Details

Source: Mitre, NVD

Published: 2025-09-09

Updated: 2025-09-09

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00077