{"id":"EM-20261110-UULU","url":"https://cyber.eventmonitor.net/incident/EM-20261110-UULU/critical-audio-video-vulnerability-cve-2026-124861/","type":"cve","title":"Critical Audio/Video Vulnerability (CVE-2026-124861)","subtitle":"CVE-2026-124861","subject":"CVE-2026-124861","status":"Developing","severity":"critical","affected":[],"headline":null,"born":"2026-11-10T14:17:18.447Z","firstSignal":"2026-11-10T13:28:08.000Z","lastSignal":"2026-11-10T14:17:18.447Z","updated":"2026-11-12T00:31:06.720Z","revision":1,"life":[{"status":"Born","at":"2026-11-10T14:17:18.447Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-10T14:17:18.447Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-10T13:28:08.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-10T14:17:18.447Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261110-UULU created."},{"at":"2026-11-10T14:17:18.447Z","what":"Severity raised to Critical by C6"}],"stages":[{"name":"Disclosed","at":"2026-11-10T14:17:18.447Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-10T14:17:18.447Z","detail":"CVSS 9.6"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-10T13:28:08.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-10T13:28:08.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-124861 (important)","text":"firefox: thunderbird: Sandbox escape due to use-after-free in the Audio/Video: cubeb component","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-124861.json"},{"at":"2026-11-10T14:17:18.447Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":4,"title":"CVE-2026-124861 (CVSS 9.6)","text":"Sandbox escape due to use-after-free in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124861"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-10T14:17:18.447","score":9.6,"severity":"CRITICAL","desc":"Sandbox escape due to use-after-free in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.","product":"","seen":1794353084878},"kev":null,"epss":null,"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}