---
id: CVE-2026-121959
title: FreeRDP before 3.32.2 Infinite Loop via Truncated WebSocket Frame
summary: >-
  FreeRDP before 3.32.2 contains an infinite loop vulnerability in
  websocket_context_read that fails to handle a zero BIO result with payload
  outstanding. A malicious RD Gateway can send a truncated WebSocket frame
  followed by a TLS close_…
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-835
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP < 3.32.2
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-04T18:27:49.326710Z'
exploitAvailable: true
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T18:28:20.749Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121959'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x26g-fp9v-c2pg'
    label: GitHub Security Advisory (GHSA-x26g-fp9v-c2pg)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-before-3.32.2-infinite-loop-via-truncated-websocket-frame
    label: >-
      VulnCheck Advisory: FreeRDP before 3.32.2 Infinite Loop via Truncated
      WebSocket Frame
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-11-05T21:36:00.489Z'
epss: 0.00313
epssPercentile: 0.24337
---

## Overview

FreeRDP before 3.32.2 contains an infinite loop vulnerability in websocket_context_read that fails to handle a zero BIO result with payload outstanding. A malicious RD Gateway can send a truncated WebSocket frame followed by a TLS close_notify, causing a client thread to spin and consume CPU until killed.

## Affected

- `FreeRDP < 3.32.2`

## Remediation

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