Medium severity4.3NVD Advisory· Published Nov 3, 2026· Updated Nov 3, 2026
CVE-2026-121399
CVE-2026-121399
Description
FreeRDP before 3.32.2 contains a memory allocation vulnerability in rdg_receive_packet that allows a malicious RD Gateway to force a 2 GiB client allocation before tunnel authentication. Attackers can send an eight-byte RDG header declaring packet length 0x7FFFFFFF to trigger pre-authentication memory exhaustion and denial of service.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4vh4-3pc3-32p7nvdVendor Advisory
- www.vulncheck.com/advisories/freerdp-before-3.32.2-memory-exhaustion-via-rd-gateway-packet-lengthnvdThird Party Advisory
News mentions
0No linked articles in our index yet.