CVE-2026-109941

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.

CVSS 4.0

7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-25)

CWE

CWE-835

Published

2026-10-13

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

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

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