CVE-2026-63117

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, an authenticated RDP client can advertise DVI ADPCM with nBlockAlign equal to 8 and nChannels equal to 2 to make the `bs` calculation in rdpsnd_server_select_format in channels/rdpsnd/server/rdpsnd_main.c equal zero. The subsequent out_frames modulo `bs` operation raises SIGFPE and terminates the server-side rdpsnd channel process. This vulnerability fixed in 3.28.0.

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Produits concernés

• FreeRDP
• Freerdp freerdp

Scores CVSS

Faiblesses (CWE)

• CWE-369

Références

• https://github.com/FreeRDP/FreeRDP/commit/b78fc0b138fe8f08a8b102e193ffb32986f4449a Patch
• https://github.com/FreeRDP/FreeRDP/pull/12980 Issue TrackingPatch
• https://github.com/FreeRDP/FreeRDP/releases/tag/3.28.0 Release Notes
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v64m-xxfw-hrv6 Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories