---
id: CVE-2026-121401
title: FreeRDP before 3.32.2 Denial of Service via RD Gateway extended-auth packet
summary: >-
  FreeRDP before 3.32.2 contains a denial of service vulnerability where
  rdg_process_packet dispatches a PKT_TYPE_EXTENDED_AUTH_MSG without verifying
  negotiated mode or auth context. A malicious or compromised RD Gateway can
  send the exten…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-476
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP < 3.32.2
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-03T16:07:55.379361Z'
exploitAvailable: true
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T16:08:18.318Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121401'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rjm-m7xg-mg6m'
    label: GitHub Security Advisory (GHSA-8rjm-m7xg-mg6m)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-rd-gateway-extended-auth-packet
    label: >-
      VulnCheck Advisory: FreeRDP before 3.32.2 Denial of Service via RD Gateway
      extended-auth packet
tags:
  - cve.org
  - exploit-available
epss: 0.00317
epssPercentile: 0.24736
ingestedAt: '2026-11-05T20:33:06.279Z'
---

## Overview

FreeRDP before 3.32.2 contains a denial of service vulnerability where rdg_process_packet dispatches a PKT_TYPE_EXTENDED_AUTH_MSG without verifying negotiated mode or auth context. A malicious or compromised RD Gateway can send the extended-auth packet before tunnel authentication, triggering a null-pointer dereference that crashes the client.

## Affected

- `FreeRDP < 3.32.2`

## Remediation

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