{"id":"EM-20261103-CL7U","url":"https://cyber.eventmonitor.net/incident/EM-20261103-CL7U/","type":"cve","title":"Critical Google Chrome Vulnerability (CVE-2026-121077)","subtitle":"CVE-2026-121077","subject":"CVE-2026-121077","status":"Developing","severity":"critical","affected":[],"headline":null,"born":"2026-11-03T21:17:12.893Z","firstSignal":"2026-11-03T20:42:52.000Z","lastSignal":"2026-11-03T21:17:12.893Z","updated":"2026-11-05T01:06:50.406Z","revision":1,"life":[{"status":"Born","at":"2026-11-03T21:17:12.893Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-03T21:17:12.893Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-03T20:42:52.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-03T21:17:12.893Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261103-CL7U created."},{"at":"2026-11-03T21:17:12.893Z","what":"Severity raised to Critical by C6"}],"stages":[{"name":"Disclosed","at":"2026-11-03T21:17:12.893Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-03T21:17:12.893Z","detail":"CVSS 9.6 · EPSS 0.3%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-03T20:42:52.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-03T20:42:52.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":2,"title":"Red Hat: CVE-2026-121077 (moderate)","text":"chromium-browser: Use after free in Mobile","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-121077.json"},{"at":"2026-11-03T21:17:12.893Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":4,"title":"CVE-2026-121077 (CVSS 9.6)","text":"Use after free in Mobile in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121077"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-03T21:17:12.893","score":9.6,"severity":"CRITICAL","desc":"Use after free in Mobile in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","product":"Google Chrome","seen":1793825379808},"kev":null,"epss":{"epss":0.00299,"pct":0.22715,"at":1793803438877},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}