---
id: CVE-2026-111380
title: FreeRDP 3.29.0 before 3.32.0 Heap Overflow via audin Apple Backends
summary: >-
  FreeRDP from 3.29.0 before 3.32.0 contains an integer overflow in the Apple
  audin backends (audin_mac.m, audin_ios.m), which compute the audio queue
  buffer size as FramesPerPacket * 2 * nChannels in UINT32 arithmetic, bypassing
  the CVE-2…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-190
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP >= 3.29.0 < 3.32.0
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-21T02:03:55.486861Z'
exploitAvailable: true
published: '2026-10-16'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T02:06:15.611Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111380'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-72qv-gcph-rfwf'
    label: GitHub Security Advisory (GHSA-72qv-gcph-rfwf)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-3.29.0-before-3.32.0-heap-overflow-via-audin-apple-backends
    label: >-
      VulnCheck Advisory: FreeRDP 3.29.0 before 3.32.0 Heap Overflow via audin
      Apple Backends
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111380.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-111380'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2553925'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-111380'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111380'
tags:
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
epss: 0.00319
epssPercentile: 0.24725
ingestedAt: '2026-10-16T01:55:57.992Z'
---

## Overview

FreeRDP from 3.29.0 before 3.32.0 contains an integer overflow in the Apple audin backends (audin_mac.m, audin_ios.m), which compute the audio queue buffer size as FramesPerPacket * 2 * nChannels in UINT32 arithmetic, bypassing the CVE-2026-91962 fix. A malicious RDP server can send FramesPerPacket of 2^30 in the audin Open PDU to wrap the multiplication, causing undersized AudioQueueAllocateBuffer allocations and a heap out-of-bounds write in macOS and iOS clients.

## Affected

- `FreeRDP >= 3.29.0 < 3.32.0`

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Important · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111380.json)