Cyber Resilience

CVE-2025-55317

High

Published: 09 September 2025

Published
09 September 2025
Modified
12 September 2025
KEV Added
—
Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0046 64.6th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-55317 is a high-severity Link Following (CWE-59) vulnerability in Microsoft Autoupdate. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 35.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.

CWE(s)
CWE-59

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
autoupdate
≤ 4.80

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References