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CVE-2026-111380— FreeRDP 3.29.0 before 3.32.0 Heap Overflow via audin Apple Backends

Quick assessment

Affected
FreeRDP FreeRDP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreeRDP 在 3.29.0 至 3.32.0 版本（不含 3.32.0）中存在一个整数溢出漏洞，位于 Apple 音频后端（audin_mac.m 和 audin_ios.m）。该漏洞发生在计算音频队列缓冲区大小时，其计算方式为 ，使用 UINT32 算术运算，从而绕过了 CVE-2026-91962 的安全修复。恶意 RDP 服务器可以在 audin 的 Open PDU 中发送 值为 2^30，导致乘法运算发生溢出（回绕），进而造成音频队列缓冲区分配过小（undersized AudioQueueAllo

CVSS 8.8 · High EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 2

VendorProduct Version RangeStatus
FreeRDP FreeRDP 3.29.0< 3.32.0 affected
3.32.0 unaffected
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I. Basic Information for CVE-2026-111380

Vulnerability Information
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Vulnerability Title
FreeRDP 3.29.0 before 3.32.0 Heap Overflow via audin Apple Backends
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreeRDP FreeRDP 3.29.0 ~ 3.32.0 -

II. Public POCs for CVE-2026-111380

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III. Intelligence Information for CVE-2026-111380

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Vendor Advisories for CVE-2026-111380 (1)

Vendor Pages for CVE-2026-111380 (1)

Same Patch Batch · FreeRDP · 2026-10-16 · 10 CVEs total

CVE-2026-111382 8.8 HIGH FreeRDP before 3.32.0 Heap Out-of-Bounds Write in AVC444 YUV444 Combine
CVE-2026-111378 7.5 HIGH FreeRDP 3.0.0 before 3.32.0 Unauthenticated Memory Exhaustion via NLA Frame Parser
CVE-2026-111381 7.3 HIGH FreeRDP before 3.32.0 Heap Buffer Overflow via Persistent Cache v2 Parser
CVE-2026-111379 7.3 HIGH FreeRDP before 3.32.0 Heap Buffer Overflow via persistent_cache_read_entry_v3
CVE-2026-111377 6.5 MEDIUM FreeRDP 2.0.0 before 3.32.0 Memory Exhaustion via Static Channel Reassembly
CVE-2026-111374 5.3 MEDIUM FreeRDP from 3.30.0 before 3.32.0 Resource Exhaustion via rdpecam StartStreamsRequest
CVE-2026-111373 5.3 MEDIUM FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping
CVE-2026-111376 5.0 MEDIUM FreeRDP 3.30.0 before 3.32.0 Heap Over-Read via Windows cliprdr FILECONTENTS_SIZE
CVE-2026-111375 4.8 MEDIUM FreeRDP 3.0.0 before 3.32.0 Out-of-Bounds Read via RAIL Window Title

IV. Related Vulnerabilities

Same product: FreeRDP
Same vendor: FreeRDP
Same weakness: CWE-190

V. Comments for CVE-2026-111380

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