FreeRDP 2.1.0 before 3.32.0 contains a use-after-free vulnerability in the static rdpsnd channel disconnect path, which frees audio formats and… (CVE-2026-109254)
Description
FreeRDP versions from 2.1.0 up to but not including 3.32.0 contain a use-after-free vulnerability in the static rdpsnd channel disconnect path. This flaw occurs when a malicious RDP server disconnects during asynchronous Wave2 playback, causing the client to access freed heap memory and potentially crash. The vulnerability has a medium severity rating with a CVSS score of 5.9.
CVSS v3.1
Score 5.9medium
Affected software
pkg:github/freerdp/FreeRDPRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in FreeRDP 2.1.0 before 3.32.0 is a use-after-free condition in the static rdpsnd channel disconnect path. Specifically, audio formats and device resources are freed without properly synchronizing with the play_thread. A malicious RDP server can exploit this by disconnecting while asynchronous Wave2 playback is processing queued PDUs, leading the client to read freed heap memory and crash.
Potential Impact
An attacker controlling a malicious RDP server can cause the FreeRDP client to crash by triggering a use-after-free condition during audio playback. This results in a denial of service (DoS) condition. There is no indication of confidentiality or integrity impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor vendor communications for updates and avoid connecting to untrusted RDP servers until a fix is available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-qmqf-2qmq-qw2p
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-109254"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6acd55522cdf04f656da854b
Added to database: 10/12/2026, 21:46:58 UTC
Last enriched: 10/12/2026, 21:57:29 UTC
Last updated: 10/13/2026, 02:48:09 UTC
Views: 2
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