Is CVE-2026-109946 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-109946?

CVE-2026-109946 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-109946

Description

FreeRDP 3.11.0 before 3.32.0 does not validate that AVC444 and AVC444v2 region widths are even before YUV444 conversion, so an odd width reaches an assertion and aborts the client. A malicious or compromised RDP server can terminate a connected FreeRDP client after RDPGFX AVC444 negotiation by sending an in-bounds region rectangle with an odd width.