{"affected":[{"defaultStatus":"unaffected","product":"FreeRDP","source":"CNA: VulnCheck","vendor":"FreeRDP","versions":[{"lessThan":"3.32.2","status":"affected","version":"3.0.0","versionType":"semver"},{"status":"unaffected","version":"3.32.2","versionType":"semver"}]}],"cveId":"CVE-2026-121396","cwes":["CWE-617"],"description":"FreeRDP clients from 3.0.0 before 3.32.2 built with verbose WinPR assertions contain a reachable assertion in rts_read_auth_verifier triggered by malformed RTS padding. Attackers controlling an RD Gateway can send a crafted RPC-over-HTTP RTS PDU with inconsistent authentication padding to abort the connecting client process.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},{"score":4.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1793716080532,"publishedAt":1793716080532,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6p3w-fv52-cf24"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.2-denial-of-service-via-rts-padding-assertion"}],"remediation":[],"revision":"916dcf4ed68c1f1ce1f95f0a31577331aa694b971b53491688425ba2d961c9f0","sources":[{"modifiedAt":1793716080532,"name":"CNA: VulnCheck","retrievedAt":1793718541072,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121396"}],"ssvc":null,"status":"published","title":"FreeRDP 3.0.0 before 3.32.2 denial of service via RTS padding assertion","updatedAt":1793718541072}