---
id: CVE-2026-121411
title: FreeRDP before 3.32.2 X11 Client Abort via RDPGFX Scaled Output Geometry
summary: >-
  FreeRDP before 3.32.2 fails to bound server-supplied target dimensions and
  output origin in RDPGFX MAPSURFACETOSCALEDOUTPUT PDUs, allowing malicious RDP
  servers to abort X11 clients. Attackers can map a surface to oversized scaled
  output…
severity: low
cvss: 3.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-20
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP < 3.32.2
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T14:28:10.920Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121411'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wffv-rjv2-h2x2'
    label: GitHub Security Advisory (GHSA-wffv-rjv2-h2x2)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-before-3.32.2-x11-client-abort-via-rdpgfx-scaled-output-geometry
    label: >-
      VulnCheck Advisory: FreeRDP before 3.32.2 X11 Client Abort via RDPGFX
      Scaled Output Geometry
tags:
  - cve.org
epss: 0.00229
epssPercentile: 0.13822
ingestedAt: '2026-11-05T19:30:42.965Z'
---

## Overview

FreeRDP before 3.32.2 fails to bound server-supplied target dimensions and output origin in RDPGFX MAPSURFACETOSCALEDOUTPUT PDUs, allowing malicious RDP servers to abort X11 clients. Attackers can map a surface to oversized scaled output, triggering checked UINT16 cast or freerdp_image_scale stride assertion failures that terminate the client.

## Affected

- `FreeRDP < 3.32.2`

## Remediation

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