What’s Vulnerable › Vulnerabilities

CVE-2026-109941: FreeRDP 2.3.0 before 3.32.0 Infinite Loop via RD Gateway Chunked Response

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-10-13 · updated 2026-10-26
• Weakness: CWE-835

Description

FreeRDP from 2.3.0 before 3.32.0 contains an infinite loop vulnerability in http_chuncked_read that allows malicious RD Gateways to hang clients by sending incomplete chunked responses. Attackers can send a partial chunk-size line or footer followed by a clean TLS shutdown, causing zero-byte reads to loop forever and freeze the client decoder thread.

Affected products

• FreeRDP: from 2.3.0 before 3.32.0 — fixed in 3.32.0
• FreeRDP: from 2.3.0 before 3.32.0 — fixed in 3.32.0

How to fix

Upgrade to a fixed version: FreeRDP 3.32.0; FreeRDP 3.32.0. Check the vendor advisory for mitigations.

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7vfc-chg9-q5r8
• https://www.vulncheck.com/advisories/freerdp-2.3.0-before-3.32.0-infinite-loop-via-rd-gateway-chunked-response
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7vfc-chg9-q5r8

Get alerted when CVE-2026-109941 or the next vulnerability affects your stack