{"id":"EM-20261104-OHWZ","url":"https://cyber.eventmonitor.net/incident/EM-20261104-OHWZ/critical-freerdp-vulnerability-cve-2026-121953/","type":"cve","title":"Critical FreeRDP Vulnerability (CVE-2026-121953)","subtitle":"CVE-2026-121953","subject":"CVE-2026-121953","status":"Developing","severity":"critical","affected":[],"headline":null,"born":"2026-11-04T16:17:47.717Z","firstSignal":"2026-11-04T15:33:18.000Z","lastSignal":"2026-11-04T16:17:47.717Z","updated":"2026-11-09T13:00:37.045Z","revision":1,"life":[{"status":"Born","at":"2026-11-04T16:17:47.717Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-04T16:17:47.717Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-04T15:33:18.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-04T16:17:47.717Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261104-OHWZ created."},{"at":"2026-11-04T16:17:47.717Z","what":"Severity raised to Critical by C6"}],"stages":[{"name":"Disclosed","at":"2026-11-04T16:17:47.717Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-04T16:17:47.717Z","detail":"CVSS 9.3 · EPSS 0.6%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-04T15:33:18.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-04T15:33:18.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-121953 (important)","text":"freerdp: freerdp: Use-after-free via rdpgfx dynamic virtual channel close","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-121953.json"},{"at":"2026-11-04T16:17:47.717Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":4,"title":"CVE-2026-121953 (CVSS 9.3)","text":"FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send a PDU on the original channel to crash the client or potentially execute code.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121953"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-04T16:17:47.717","score":9.3,"severity":"CRITICAL","desc":"FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send…","product":"Freerdp","seen":1793917591435},"kev":null,"epss":{"epss":0.00564,"pct":0.47125,"at":1794229237045},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}