What is CVE-2025-29801?

CVE-2025-29801 is a high-severity vulnerability in Microsoft Autoupdate, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2025-04-08.

How severe is CVE-2025-29801?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Microsoft Autoupdate

CVE-2025-29801

Incorrect default permissions in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.

Published 2025-04-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.011 · change: +0.000

Affected products

Microsoft Autoupdate
Microsoft Autoupdate For Mac — versions 4.0.0

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

Microsoft AutoUpdate (MAU) Elevation of Privilege Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-29801?: CVE-2025-29801 is a high-severity vulnerability in Microsoft Autoupdate, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2025-04-08.
How severe is CVE-2025-29801?: High severity. CVSS v3 base score is 7.8 out of 10.