{"id":"EM-20261104-J19F","url":"https://cyber.eventmonitor.net/incident/EM-20261104-J19F/freerdp-vulnerability-cve-2026-121956/","type":"cve","title":"FreeRDP Vulnerability (CVE-2026-121956)","subtitle":"CVE-2026-121956","subject":"CVE-2026-121956","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-04T16:17:48.250Z","firstSignal":"2026-11-04T15:33:20.000Z","lastSignal":"2026-11-04T16:17:48.250Z","updated":"2026-11-07T00:59:45.971Z","revision":1,"life":[{"status":"Born","at":"2026-11-04T16:17:48.250Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-04T16:17:48.250Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-04T15:33:20.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-04T16:17:48.250Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261104-J19F created."}],"stages":[{"name":"Disclosed","at":"2026-11-04T16:17:48.250Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-04T16:17:48.250Z","detail":"CVSS 8.7 · EPSS 0.4%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-04T15:33:20.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-04T15:33:20.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-121956 (important)","text":"freerdp: freerdp: Denial of Service via crafted Kerberos authentication request","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-121956.json"},{"at":"2026-11-04T16:17:48.250Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-121956 (CVSS 8.7)","text":"FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function, which installs the krb5 default realm into a target principal that has an empty realm without taking ownership of it. Unauthenticated remote clients can send a crafted NLA/CredSSP u2u TGT request whose server-name component contains '@' to corrupt the heap and crash the server process.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121956"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-04T16:17:48.250","score":8.7,"severity":"HIGH","desc":"FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function, which installs the krb5 default realm into a target principal that has an empty realm without taking ownership of it. Unauthenticated remote clients can send a crafted NLA/CredSSP u2u TGT request…","product":"Freerdp","seen":1793917591435},"kev":null,"epss":{"epss":0.00431,"pct":0.37566,"at":1794013185971},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}