---
id: CVE-2026-121387
title: FreeRDP 2.0.0 before 3.32.2 Out-of-Bounds Read via GSM610/WAV49 Decoder
summary: >-
  FreeRDP 2.0.0 before 3.32.2 contains an out-of-bounds read vulnerability in
  freerdp_dsp_decode_gsm610 that allows malicious RDP servers to read past audio
  buffers by sending truncated GSM610 frames. Attackers can negotiate GSM610 on
  rdps…
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-125
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP >= 2.0.0 < 3.32.2
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T14:27:54.541Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121387'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wg7g-gx9g-r96c'
    label: GitHub Security Advisory (GHSA-wg7g-gx9g-r96c)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.2-out-of-bounds-read-via-gsm610-wav49-decoder
    label: >-
      VulnCheck Advisory: FreeRDP 2.0.0 before 3.32.2 Out-of-Bounds Read via
      GSM610/WAV49 Decoder
tags:
  - cve.org
epss: 0.00234
epssPercentile: 0.1442
ingestedAt: '2026-11-05T19:30:42.958Z'
---

## Overview

FreeRDP 2.0.0 before 3.32.2 contains an out-of-bounds read vulnerability in freerdp_dsp_decode_gsm610 that allows malicious RDP servers to read past audio buffers by sending truncated GSM610 frames. Attackers can negotiate GSM610 on rdpsnd and send a WAVE2 message shorter than a 33- or 32-byte WAV49 frame to crash the client.

## Affected

- `FreeRDP >= 2.0.0 < 3.32.2`

## Remediation

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