CVE-2025-47968: Microsoft AutoUpdate (MAU) Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

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

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2025-Jun

Released

2025-06-10

EPSS Score

1.13% (percentile: 78.3%)

Description

Improper input validation in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.

FAQ

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain ROOT privileges. Is the Preview Pane an attack vector for this vulnerability? No, the Preview Pane is not an attack vector. How could an attacker exploit this vulnerability? A user can download an installer and before the user runs the installer, the attacker could replace it with a malicious installer. When the victim runs the malicious installer the attacker could elevate their privileges.

Affected Products (1)

Microsoft Office

• Microsoft AutoUpdate for Mac

Security Updates (1)

• MAU

Acknowledgments

Anonymous

Revision History

• 2025-06-10: Information published.