---
id: CVE-2026-110837
title: >-
  FreeRDP 2.0.0 before 3.32.0, when built with WITH_LAME=ON and
  WITH_DSP_FFMPEG=OFF, has a heap-based buffer overflow in
  freerdp_dsp_decode_mp3 because the right-channel PCM pointer is offset by a
  byte count treated as short elements
summary: >-
  FreeRDP 2.0.0 before 3.32.0, when built with WITH_LAME=ON and
  WITH_DSP_FFMPEG=OFF, has a heap-based buffer overflow in
  freerdp_dsp_decode_mp3 because the right-channel PCM pointer is offset by a
  byte count treated as short elements. A ma…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H'
cwe:
  - CWE-122
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP >= 2.0.0 < 3.32.0
published: '2026-10-14'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T15:54:26.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110837'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-52xc-5973-w5vv'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.0-heap-buffer-overflow-via-mp3-audio-decoding
    label: disclosure@vulncheck.com
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-52xc-5973-w5vv'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110837.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-110837'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2552978'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-110837'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110837'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T13:46:25.348471Z'
ingestedAt: '2026-10-15T00:02:07.173Z'
epss: 0.00373
epssPercentile: 0.31056
---

## Overview

FreeRDP 2.0.0 before 3.32.0, when built with WITH_LAME=ON and WITH_DSP_FFMPEG=OFF, has a heap-based buffer overflow in freerdp_dsp_decode_mp3 because the right-channel PCM pointer is offset by a byte count treated as short elements. A malicious RDP server can send MP3 audio over rdpsnd so decoded samples cross the heap allocation, crashing the client.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-10-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110837.json)