CVE-2026-121398

freerdp3: FreeRDP before 3.32.2 contains a cross-thread use-after-free vulnerability in the freerdp-proxy dyn-channel-dump modu...

CVE-2026-121398 is fixed in freerdp3 on 1 platform by DEBIAN-CVE-2026-121398 (version 3.32.2+dfsg-1), released November 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

n/a

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0025

16th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
freerdp3 · Debian 14	3.32.2+dfsg-1	DEBIAN-CVE-2026-121398	Nov 4, 2026

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