Security Advisory

CVE-2026-91955

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-15 15:18:11

Last updated 2026-09-15 15:54:42

Assigner VulnCheck

CVSS score 8.2

State PUBLISHED

Description

FreeRDP before 3.31.0 fails to validate client-supplied DesktopWidth and DesktopHeight values during GCC negotiation, allowing remote attackers to crash the server. Attackers can send crafted RDP packets with zero or oversized dimensions to trigger division-by-zero or assertion failures in multifragment update capability calculations, terminating the server process.

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