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CVE-2026-111381— FreeRDP before 3.32.0 Heap Buffer Overflow via Persistent Cache v2 Parser

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.

在 FreeRDP 3.32.0 版本之前，persistent_cache_read_entry_v2 函数中存在一个堆缓冲区溢出漏洞。本地攻击者可以通过在位图大小计算中利用整数回绕（integer wraparound）来破坏堆内存。攻击者可以构造一个包含异常大的宽度和高度值的持久化缓存 v2 文件，导致条目大小分配与实际读取操作（固定 16 KiB 读取）不匹配，当该文件被加载时，可能引发程序崩溃或远程代码执行。

CVSS 7.3 · High EPSS 0.12% · P2

Affected Version Matrix 2

VendorProduct Version RangeStatus
FreeRDP FreeRDP < 3.32.0 affected
3.32.0 unaffected
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I. Basic Information for CVE-2026-111381

Vulnerability Information
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Vulnerability Title
FreeRDP before 3.32.0 Heap Buffer Overflow via Persistent Cache v2 Parser
Source: CVE Program / CVE List V5
Vulnerability Description
FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v2 that allows local attackers to corrupt heap memory via integer wraparound in bitmap size calculation. Attackers can craft a persistent cache v2 file with oversized width and height values that causes mismatched entry size accounting and fixed 16 KiB reads, leading to crashes or code execution when loaded.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreeRDP FreeRDP 0 ~ 3.32.0 -

II. Public POCs for CVE-2026-111381

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III. Intelligence Information for CVE-2026-111381

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Vendor Advisories for CVE-2026-111381 (2)

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

CVE-2026-111380 8.8 HIGH FreeRDP 3.29.0 before 3.32.0 Heap Overflow via audin Apple Backends
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-2026-111379 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-122

V. Comments for CVE-2026-111381

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