CVE-2026-109254

MEDIUM 5.9

FreeRDP 2.1.0 before 3.32.0 Use-After-Free via rdpsnd Disconnect Path

CVSS Score

5.9

EPSS Score

0.0%

EPSS Percentile

0th

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 device without joining play_thread. A malicious RDP server can disconnect while asynchronous Wave2 playback processes queued PDUs, causing the client to read freed heap memory and crash.

CWE	CWE-416
Vendor	freerdp
Product	freerdp
Published	Oct 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Affected Versions

FreeRDP / FreeRDP

2.1.0 < 3.32.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vqxm-9w7c-hvvx vulncheck.com: https://www.vulncheck.com/advisories/freerdp-2.1.0-before-3.32.0-use-after-free-via-rdpsnd-disconnect-path

Credits

🔍 smaeljaish771 KeenSecurityLab