{"id":"EM-20261104-9048","url":"https://cyber.eventmonitor.net/incident/EM-20261104-9048/freerdp-vulnerability-cve-2026-121954/","type":"cve","title":"FreeRDP Vulnerability (CVE-2026-121954)","subtitle":"CVE-2026-121954","subject":"CVE-2026-121954","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-04T16:17:47.890Z","firstSignal":"2026-11-04T15:33:19.000Z","lastSignal":"2026-11-04T16:17:47.890Z","updated":"2026-11-07T00:59:45.971Z","revision":1,"life":[{"status":"Born","at":"2026-11-04T16:17:47.890Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-04T16:17:47.890Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-04T15:33:19.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-04T16:17:47.890Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261104-9048 created."},{"at":"2026-11-04T16:17:47.890Z","what":"Severity raised to High by C6"}],"stages":[{"name":"Disclosed","at":"2026-11-04T16:17:47.890Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-04T16:17:47.890Z","detail":"CVSS 7.1 · EPSS 0.4%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-04T15:33:19.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-04T15:33:19.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":2,"title":"Red Hat: CVE-2026-121954 (moderate)","text":"freerdp: freerdp: Denial of Service via heap out-of-bounds write in planar codec","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-121954.json"},{"at":"2026-11-04T16:17:47.890Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-121954 (CVSS 7.1)","text":"FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdp_bitmap_planar_context_reset commits new dimensions before buffer reallocation succeeds, and a failed ResetGraphics is only logged. A malicious RDP server can send an oversized ResetGraphics PDU, then a GFX PLANAR command, to corrupt client heap memory and crash the client.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121954"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-04T16:17:47.890","score":7.1,"severity":"HIGH","desc":"FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdp_bitmap_planar_context_reset commits new dimensions before buffer reallocation succeeds, and a failed ResetGraphics is only logged. A malicious RDP server can send an oversized ResetGraphics PDU, then a GFX…","product":"Freerdp","seen":1793917591435},"kev":null,"epss":{"epss":0.0035,"pct":0.28739,"at":1794013185971},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}