Use After Free Affecting freerdp-libs package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.56% (48th percentile)

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  • Snyk IDSNYK-RHEL7-FREERDPLIBS-22346263
  • published8 Nov 2026
  • disclosed4 Nov 2026

Introduced: 4 Nov 2026

NewCVE-2026-121953  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 freerdp-libs.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp-libs package and not the freerdp-libs package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send a PDU on the original channel to crash the client or potentially execute code.

CVSS Base Scores

version 3.1