---
id: CVE-2026-121960
title: FreeRDP before 3.32.2 Unauthenticated Denial of Service via CredSSP TSRequest
summary: >-
  FreeRDP before 3.32.2 contains a denial of service vulnerability in the
  NLA-enabled shadow server when a CredSSP TSRequest omits negoTokens.
  Unauthenticated attackers can send a crafted seven-byte TSRequest containing
  only the version fi…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-617
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP < 3.32.2
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-11-04T18:26:56.031917Z'
exploitAvailable: true
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T18:27:22.168Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121960'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3pg4-5r42-wxvj'
    label: GitHub Security Advisory (GHSA-3pg4-5r42-wxvj)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-before-3.32.2-unauthenticated-denial-of-service-via-credssp-tsrequest
    label: >-
      VulnCheck Advisory: FreeRDP before 3.32.2 Unauthenticated Denial of
      Service via CredSSP TSRequest
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-11-05T21:36:00.488Z'
epss: 0.00557
epssPercentile: 0.46653
---

## Overview

FreeRDP before 3.32.2 contains a denial of service vulnerability in the NLA-enabled shadow server when a CredSSP TSRequest omits negoTokens. Unauthenticated attackers can send a crafted seven-byte TSRequest containing only the version field to trigger a fatal WINPR_ASSERT and abort the server process.

## Affected

- `FreeRDP < 3.32.2`

## Remediation

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