---
id: CVE-2026-114042
title: FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual Channel PDU
summary: >-
  FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel
  that frees a pool-owned stream with the owned-stream deallocator when
  totalLength is smaller than the chunk size. A malicious RDP server can send a
  single well…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-416
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP >= 3.32.0 < 3.32.1
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-22T18:22:53.979656Z'
exploitAvailable: true
published: '2026-10-21'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T18:23:03.832Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114042'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5xjc-c64q-m8r6'
    label: GitHub Security Advisory (GHSA-5xjc-c64q-m8r6)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-3.32.0-use-after-free-via-drdynvc-virtual-channel-pdu
    label: >-
      VulnCheck Advisory: FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual
      Channel PDU
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-114042.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-114042'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2558027'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-114042'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-114042'
tags:
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
epss: 0.00353
epssPercentile: 0.28843
ingestedAt: '2026-10-21T01:37:08.046Z'
---

## Overview

FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel that frees a pool-owned stream with the owned-stream deallocator when totalLength is smaller than the chunk size. A malicious RDP server can send a single well-formed Virtual Channel PDU to trigger the free and crash the client during teardown.

## Affected

- `FreeRDP >= 3.32.0 < 3.32.1`

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-10-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-114042.json)