---
id: CVE-2026-121963
title: FreeRDP before 3.32.2 Use-After-Free via Dynamic rdpsnd Channel Close
summary: >-
  FreeRDP before 3.32.2 contains a use-after-free vulnerability in the
  asynchronous dynamic rdpsnd channel that allows malicious RDP servers to
  trigger freed callback access by closing the channel with queued audio PDUs.
  Attackers can send…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-362
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP < 3.32.2
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-04T18:20:12.614794Z'
exploitAvailable: true
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T18:20:37.767Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121963'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cx9c-q4jc-wm6c'
    label: GitHub Security Advisory (GHSA-cx9c-q4jc-wm6c)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-via-dynamic-rdpsnd-channel-close
    label: >-
      VulnCheck Advisory: FreeRDP before 3.32.2 Use-After-Free via Dynamic
      rdpsnd Channel Close
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-11-05T21:36:00.486Z'
epss: 0.00313
epssPercentile: 0.24307
---

## Overview

FreeRDP before 3.32.2 contains a use-after-free vulnerability in the asynchronous dynamic rdpsnd channel that allows malicious RDP servers to trigger freed callback access by closing the channel with queued audio PDUs. Attackers can send a training PDU then close the channel so the playback thread reads the freed callback in rdpsnd_virtual_channel_write, crashing the client.

## Affected

- `FreeRDP < 3.32.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.