Integer overflow in Freerdp
CVE-2026-111380
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-72qv-gcph-rfwf (vendor-advisory)
- www.vulncheck.com/advisories/freerdp-3.29.0-before-3.32.0-heap-overflow-via-aud… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111380?
- CVE-2026-111380 is a high-severity vulnerability in Freerdp, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2026-10-16.
- How severe is CVE-2026-111380?
- High severity. CVSS v3 base score is 8.8 out of 10.