---
id: CVE-2026-121394
title: FreeRDP before 3.32.2 Denial of Service via RemoteFX RLGR decoder
summary: >-
  FreeRDP from 3.11.0 before 3.32.2 contains an assertion failure in the
  RemoteFX RLGR decoder that allows malicious servers to terminate clients.
  Attackers controlling an RDP server can send a RemoteFX tileset with RLGR code
  32767, trigge…
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 >= 3.11.0 < 3.32.2
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-07T02:49:08.829335Z'
exploitAvailable: true
published: '2026-11-03'
updated: '2026-11-07'
sourceUpdated: '2026-11-07T02:49:37.560Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121394'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5j39-x36c-x9pm'
    label: GitHub Security Advisory (GHSA-5j39-x36c-x9pm)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-remotefx-rlgr-decoder
    label: >-
      VulnCheck Advisory: FreeRDP before 3.32.2 Denial of Service via RemoteFX
      RLGR decoder
tags:
  - cve.org
  - exploit-available
epss: 0.00254
epssPercentile: 0.17035
ingestedAt: '2026-11-05T19:30:42.961Z'
---

## Overview

FreeRDP from 3.11.0 before 3.32.2 contains an assertion failure in the RemoteFX RLGR decoder that allows malicious servers to terminate clients. Attackers controlling an RDP server can send a RemoteFX tileset with RLGR code 32767, triggering a signed narrowing assertion in rfx_rlgr_decode and crashing the client.

## Affected

- `FreeRDP >= 3.11.0 < 3.32.2`

## Remediation

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