{"id":"CVE-2026-127030","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-127030","summary":"A flaw was found in freeradius. An improper length validation in the EAP-FAST module allows a stack-based buffer overflow during session ticket processing. A remote, unauthenticated…","details":"A flaw was found in freeradius. An improper length validation in the EAP-FAST module allows a stack-based buffer overflow during session ticket processing. A remote, unauthenticated attacker can exploit this flaw by sending a specially crafted handshake request, causing the server process to crash and resulting in a Denial of Service (DoS).","published":"2026-11-12T17:17:43.150","modified":"2026-11-12T17:17:43.283","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/FreeRADIUS/freeradius-server/commit/064567a08f3b9d9b4863fab6060fafe296ac7de9","label":"FreeRADIUS/freeradius-server@064567a"},"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-127030"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2572340"},{"type":"WEB","url":"https://github.com/FreeRADIUS/freeradius-server/commit/064567a08f3b9d9b4863fab6060fafe296ac7de9"},{"type":"WEB","url":"https://github.com/FreeRADIUS/freeradius-server/commit/a5d09dad528d7a3a3c4c01158716ab85a12e09ef"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-12T17:17:43.283"}}