CVE-2026-109254
freerdp: freerdp: Denial of Service via use-after-free during audio channel disconnect
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 13, 2026
Updated · October 13, 2026
Description
A flaw was found in FreeRDP. A use-after-free vulnerability allows a malicious Remote Desktop Protocol (RDP) server to cause a Denial of Service (DoS) by crashing the client. During static audio channel disconnection, audio data structures are released before the background playback thread finishes processing queued audio. By disconnecting during asynchronous audio playback, a malicious server forces the client to access freed memory, causing the application to terminate unexpectedly.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
CWE-825 · Expired Pointer Dereference