CVE-2026-121389

FreeRDP from 3.27.0 before 3.32.2 contains a denial of service vulnerability in rdpdr_dump_packet that allows malicious RDP servers to abort clients by sending malformed RDPDR device-list announcements. Attackers can declare a DeviceDataLength exceeding the received packet, triggering a fatal Stream_Seek assertion when device redirection, TRACE logging, and WinPR assertions are enabled.

• CWE-617

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-66mr-7wc7-23vcVendor Advisory
• https://www.vulncheck.com/advisories/freerdp-3.27.0-before-3.32.2-client-dos-via-rdpdr-device-announcement-loggingThird Party Advisory
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-66mr-7wc7-23vcVendor Advisory

Published

Nov 3, 2026

Last Modified

Nov 3, 2026

Status

Analyzed

• 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-2026-12137The SysBasics Customize My Account for WooCommerce – Dashboa…6.1
• CVE-2026-121373The Symfony HtmlSanitizer component MetaRefreshAttributeSani…5.3
• CVE-2026-121382A vulnerability was determined in Netcore NBR100V2 1.3.24061…7.5
• CVE-2026-121386FreeRDP before 3.32.2 contains a denial of service vulnerabi…7.5
• CVE-2026-121387FreeRDP 2.0.0 before 3.32.2 contains an out-of-bounds read v…4.3
• CVE-2026-121388FreeRDP from 3.0.0 before 3.32.2 contains an uncontrolled re…6.5
• CVE-2026-12139Tanium addressed an information disclosure vulnerability in …5.5
• CVE-2026-121390FreeRDP 3.0.0 before 3.32.2 built with WITH_AAD=ON contains …4.3
• CVE-2026-121391FreeRDP from 3.0.0 before 3.32.2 contains a file descriptor …4.3
• CVE-2026-121392FreeRDP before 3.32.2 contains an improper certificate valid…7.4
• CVE-2026-121393FreeRDP from 3.0.0 before 3.32.2 contains a denial of servic…6.5
• CVE-2026-121394FreeRDP from 3.11.0 before 3.32.2 contains an assertion fail…6.5