CVE-2025-29811 Windows Mobile Broadband Driver Elevation of Privilege Vulnerability

High 7.8 Published Updated

An authorized local attacker can elevate privileges via improper input validation in the Windows Mobile Broadband driver.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-29811?

CVE-2025-29811 is a high-severity vulnerability in Microsoft Windows 11 22h2, published on 8 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper input validation in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally.

Weakness: CWE-20, CWE-125, CWE-122

Which versions are affected by CVE-2025-29811?

It affects 5 products.

Products include Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2, Microsoft Windows Server 2022 23h2, Microsoft Windows Server 2025.

How do I fix CVE-2025-29811?

No fix has been published for CVE-2025-29811 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-29811 being exploited?

There is no known exploitation of CVE-2025-29811 in the wild and no public exploit code.

All Microsoft Windows 11 22h2 vulnerabilities

Sources

Also known as GHSA-f687-cpxh-93rh.

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