{"id":"CVE-2026-121399","title":"FreeRDP before 3.32.2 Memory Exhaustion via RD Gateway Packet Length","summary":"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 declar…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-770"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP < 3.32.2"],"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T14:28:02.598Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121399","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4vh4-3pc3-32p7","label":"GitHub Security Advisory (GHSA-4vh4-3pc3-32p7)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-memory-exhaustion-via-rd-gateway-packet-length","label":"VulnCheck Advisory: FreeRDP before 3.32.2 Memory Exhaustion via RD Gateway Packet Length"}],"tags":["cve.org"],"epss":0.00269,"epssPercentile":0.19139,"ingestedAt":"2026-11-05T19:30:42.962Z","slug":"CVE-2026-121399","body":"## Overview\n\nFreeRDP 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.\n\n## Affected\n\n- `FreeRDP < 3.32.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}