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CVE-2026-110836— FreeRDP 3.0.0 before 3.32.0 Infinite Loop DoS via Gateway Content-Type

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 从 3.0.0 到 3.32.0（不含 3.32.0）版本中存在一个无限循环漏洞，位于 函数中。该漏洞允许恶意网关通过构造特殊的 Content-Type 头信息，耗尽客户端的 CPU 资源。控制网关的攻击者可以返回非零的 Content-Length，同时搭配包含分号且无法识别的 Content-Type 头，从而导致客户端线程以满负荷运行 CPU 资源，并无限期地挂起该线程。

CVSS 6.5 · Medium EPSS 0.25% · P16

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-2026-110836

Vulnerability Information
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Vulnerability Title
FreeRDP 3.0.0 before 3.32.0 Infinite Loop DoS via Gateway Content-Type
Source: CVE Program / CVE List V5
Vulnerability Description
FreeRDP from 3.0.0 before 3.32.0 contains an infinite loop vulnerability in http_response_recv() that allows malicious gateways to exhaust client CPU via crafted Content-Type headers. Attackers controlling a gateway can return a nonzero Content-Length with a semicolon-containing unrecognized Content-Type, pinning a client thread at full CPU indefinitely.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
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-2026-110836

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III. Intelligence Information for CVE-2026-110836

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Other References for CVE-2026-110836 (2)

Same Patch Batch · FreeRDP · 2026-10-14 · 11 CVEs total

CVE-2026-110838 7.5 HIGH FreeRDP shadow before 3.32.0 Pre-Authentication Input Injection via Confirm Active bypass
CVE-2026-110839 7.1 HIGH FreeRDP 3.3.0 before 3.32.0 Heap Out-of-Bounds Write via Grayscale JPEG Clipboard Data
CVE-2026-110837 7.1 HIGH FreeRDP 2.0.0 before 3.32.0 Heap Buffer Overflow via MP3 Audio Decoding
CVE-2026-110829 6.5 MEDIUM FreeRDP 3.0.0 before 3.32.0 Null Pointer Dereference via rdpsnd Fragment
CVE-2026-110834 6.5 MEDIUM FreeRDP 2.0.0 before 3.32.0 Denial of Service via Serial IRP Null Handle
CVE-2026-110832 6.5 MEDIUM FreeRDP 2.0.0 before 3.32.0 Memory Exhaustion via DRDYNVC DATA_FIRST
CVE-2026-110830 5.9 MEDIUM FreeRDP before 3.32.0 Denial of Service via Serial IRP_MJ_CREATE
CVE-2026-110833 5.9 MEDIUM FreeRDP before 3.32.0 Unbounded Memory Retention via RDPDR Proxy
CVE-2026-110831 4.3 MEDIUM FreeRDP 3.13.0 before 3.32.0 Resource Leak via Drive Redirection IRP_MJ_CREATE
CVE-2026-110835 4.0 MEDIUM FreeRDP 3.0.0 before 3.32.0 HTTP Header Injection via Proxy Routing Token

IV. Related Vulnerabilities

Same product: FreeRDP
Same vendor: FreeRDP
Same weakness: CWE-835

V. Comments for CVE-2026-110836

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