VulnerabilityAwaiting Analysis

CVE-2026-63117

FreeRDP is a free implementation of the Remote Desktop Protocol.

MEDIUM 6.5EPSS 0.39%

Does this matter?

Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.39% probability · 32th percentile
CISA KEV: Not listed
Weakness: CWE-369
Source: security-advisories@github.com

References

https://github.com/FreeRDP/FreeRDP/commit/b78fc0b138fe8f08a8b102e193ffb32986f4449a
https://github.com/FreeRDP/FreeRDP/pull/12980
https://github.com/FreeRDP/FreeRDP/releases/tag/3.28.0
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v64m-xxfw-hrv6

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.