CVE-2025-55317

EUVD-2025-27335
Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.
Link Following
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
microsoftCNA
7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Base Score
CVSS 3.x
EPSS Score
Percentile: 23%
Affected Products (NVD)
VendorProductVersion
microsoftautoupdate
𝑥
< 4.80
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55317