CVE-2026-109938: FreeRDP 3.11.0 before 3.32.0 Integer Overflow via Mapped Video Geometry Update

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-10-13 · updated 2026-10-26
Weakness: CWE-190

Description

Positive mapped-video coordinates overflow and abort FreeRDP clients A malicious or compromised RDP server can terminate a FreeRDP client after the user connects with video redirection enabled.

Affected products

FreeRDP: from 3.11.0 before 3.32.0 — fixed in 3.32.0
FreeRDP: from 3.11.0 before 3.32.0 — fixed in 3.32.0

How to fix

Upgrade to a fixed version: FreeRDP 3.32.0; FreeRDP 3.32.0. Check the vendor advisory for mitigations.

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-96rv-gf42-7wq9
https://www.vulncheck.com/advisories/freerdp-3.11.0-before-3.32.0-integer-overflow-via-mapped-video-geometry-update
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-96rv-gf42-7wq9

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