CVE-2026-110830

FreeRDP before 3.32.0 fails to close prior serial handles in serial_process_irp_create, allowing a malicious RDP server to exhaust file descriptors. Attackers can send repeated serial IRP_MJ_CREATE requests to accumulate descriptors and terminate the client at the CommReadFile FD_SETSIZE assertion.

Score

CVSS 4.0 8.2 High

Status

Analyzed - disclosure@vulncheck.com

Published

2026-10-14

Last modified

2026-10-23

Weaknesses

CWE-400

Affected products

• Freerdp (Freerdp)

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mqxv-c882-m8w9
• https://www.vulncheck.com/advisories/freerdp-before-3.32.0-denial-of-service-via-serial-irp-mj-create