CVE tracker / CVE-2025-29811
CVE-2025-29811
CVE-2025-29811 is the Windows Mobile Broadband Driver Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published April 8, 2025.
Risk summary
Microsoft describes it: “Improper input validation in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally.”
How to fix it
Microsoft lists 9 affected products and the update that fixes each:
- KB5055523 · fixed build 10.0.26100.3775
Windows Server 2025 (Server Core installation), Windows Server 2025, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems - KB5055527 · fixed build 10.0.25398.1551
Windows Server 2022, 23H2 Edition (Server Core installation) - KB5055528 · fixed build 10.0.22631.5189, 10.0.22621.5189
Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 22H2 for x64-based Systems, Windows 11 Version 22H2 for ARM64-based Systems
What Microsoft changed
- April 8, 2025: Information published.
Details
- Weakness
- CWE-20: Improper Input Validation
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- April 8, 2025
- Last revised
- April 8, 2025
Get told when this changes
Senserva Watch emails Microsoft security and patch alerts when something moves: a new exploitation report, a revised fix, a known issue. Free, one email address.
References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.