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CVE-2026-111378— FreeRDP 3.0.0 before 3.32.0 Unauthenticated Memory Exhaustion via NLA Frame 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.

FreeRDP 3.0.0 至 3.32.0（不含）版本中存在一个“不受控的资源消耗”漏洞，位于 函数中。该漏洞允许未经身份验证的攻击者耗尽服务器内存。具体而言，攻击者可以发送以非 DER SEQUENCE 标签（0x30）开头的 TLS 及流数据字节，从而在 NLA（网络级别身份验证）认证完成之前，导致接收缓冲区无限制增长，引发资源耗尽。

CVSS 7.5 · High EPSS 0.33% · P24

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 2

VendorProduct Version RangeStatus
FreeRDP FreeRDP 3.0.0< 3.32.0 affected
3.32.0 unaffected
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I. Basic Information for CVE-2026-111378

Vulnerability Information
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Vulnerability Title
FreeRDP 3.0.0 before 3.32.0 Unauthenticated Memory Exhaustion via NLA Frame Parser
Source: CVE Program / CVE List V5
Vulnerability Description
FreeRDP from 3.0.0 before 3.32.0 contains an uncontrolled resource consumption vulnerability in parse_nla_mode_pdu that allows unauthenticated attackers to exhaust server memory. Attackers can complete TLS and stream bytes not beginning with the DER SEQUENCE tag 0x30, causing unbounded receive buffer growth before NLA authentication.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreeRDP FreeRDP 3.0.0 ~ 3.32.0 -

II. Public POCs for CVE-2026-111378

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III. Intelligence Information for CVE-2026-111378

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Vendor Advisories for CVE-2026-111378 (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-2026-111381 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-400

V. Comments for CVE-2026-111378

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