CVE-2026-121405

FreeRDP before 3.32.2 fails to cap the OutputBufferLength in serial device-control IRP requests, allowing malicious servers to trigger excessive memory allocation. Attackers running a server with serial redirection can send an IRP_MJ_DEVICE_CONTROL request with IOCTL_USBPRINT_GET_1284_ID and a near-maximum length to exhaust client memory.

• CWE-770

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r387-jjq3-87hvVendor Advisory
• https://www.vulncheck.com/advisories/freerdp-before-3.32.2-memory-exhaustion-via-serial-rdpdr-device-controlThird Party Advisory
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r387-jjq3-87hvVendor Advisory

Published

Nov 3, 2026

Last Modified

Nov 3, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-121399FreeRDP before 3.32.2 contains a memory allocation vulnerabi…4.3
• CVE-2026-121400FreeRDP before 3.32.2 contains a denial-of-service vulnerabi…6.5
• CVE-2026-121401FreeRDP before 3.32.2 contains a denial of service vulnerabi…4.3
• CVE-2026-121402FreeRDP before 3.32.2 contains a NULL pointer dereference vu…6.5
• CVE-2026-121403FreeRDP before 3.32.2 contains a denial of service vulnerabi…4.3
• CVE-2026-121404FreeRDP before 3.32.2 contains a denial of service vulnerabi…6.5
• CVE-2026-121406FreeRDP before 3.32.2 allows a client assertion abort becaus…4.3
• CVE-2026-121407FreeRDP before 3.32.2 contains a denial of service vulnerabi…6.5
• CVE-2026-121408FreeRDP before 3.32.2 contains a use-after-free in the urbdr…5.3
• CVE-2026-121409FreeRDP before 3.32.2 contains a denial of service vulnerabi…5.9
• CVE-2026-12141The Premium Addons for Elementor – Powerful Elementor Templa…4.9
• CVE-2026-121410FreeRDP before 3.32.2 contains a denial of service vulnerabi…4.3