CVE-2026-121398

MEDIUM 5.9

FreeRDP before 3.32.2 Use-After-Free via dyn-channel-dump Module

CVSS Score

5.9

EPSS Score

0.0%

EPSS Percentile

0th

FreeRDP before 3.32.2 contains a cross-thread use-after-free vulnerability in the freerdp-proxy dyn-channel-dump module during session teardown. A malicious RDP target can send dynamic channel data while the front client disconnects, letting the client thread read freed ChannelData and crash the proxy process.

CWE	CWE-416
Vendor	freerdp
Product	freerdp
Published	Nov 3, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

FreeRDP / FreeRDP

0 < 3.32.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v3q2-qjvf-7rqw vulncheck.com: https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-via-dyn-channel-dump-module

Credits

Kushalkhemka mayank-jangid-moon opensec-intelligence