---
id: CVE-2026-121393
title: FreeRDP 3.0.0 before 3.32.2 Denial of Service via RemoteFX Region Assertion
summary: >-
  FreeRDP from 3.0.0 before 3.32.2 contains a denial of service vulnerability
  that allows malicious RDP servers to abort clients built with verbose WinPR
  assertions by sending crafted RemoteFX region rectangles. Attackers can supply
  a rect…
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-617
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP >= 3.0.0 < 3.32.2
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-03T16:01:46.540354Z'
exploitAvailable: true
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T16:02:13.454Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121393'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qw2-8h66-pvpw'
    label: GitHub Security Advisory (GHSA-7qw2-8h66-pvpw)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.2-denial-of-service-via-remotefx-region-assertion
    label: >-
      VulnCheck Advisory: FreeRDP 3.0.0 before 3.32.2 Denial of Service via
      RemoteFX Region Assertion
tags:
  - cve.org
  - exploit-available
epss: 0.00358
epssPercentile: 0.2976
ingestedAt: '2026-11-05T20:33:06.276Z'
---

## Overview

FreeRDP from 3.0.0 before 3.32.2 contains a denial of service vulnerability that allows malicious RDP servers to abort clients built with verbose WinPR assertions by sending crafted RemoteFX region rectangles. Attackers can supply a rectangle with x set to 65535 alongside a SurfaceBits destination left of 1, triggering a 16-bit coordinate assertion in rfx_process_message that terminates the client process.

## Affected

- `FreeRDP >= 3.0.0 < 3.32.2`

## Remediation

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