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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-72qv-gcph-rfwf Exploit, Mitigation, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-72qv-gcph-rfwf Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 5
- StatusAnalyzed → ModifiedNVD modified 2026-10-21 03:17
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-20 15:34
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-20 15:34
- StatusReceived → Awaiting AnalysisNVD modified 2026-10-16 14:52
- First seenCVSS 8.7NVD modified 2026-10-16 03:18
Affected (CPE criteria) 1
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
References 3
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-72qv-gcph-rfwf Exploit, Mitigation, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-3.29.0-before-3.32.0-heap-overflow-via-audin-apple-backends Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-72qv-gcph-rfwf Exploit, Mitigation, Vendor Advisory