{"id":"EM-20261031-JD6M","url":"https://cyber.eventmonitor.net/incident/EM-20261031-JD6M/","type":"cve","title":"libheif Vulnerability (CVE-2026-120208)","subtitle":"CVE-2026-120208","subject":"CVE-2026-120208","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-10-31T18:17:09.083Z","firstSignal":"2026-10-31T17:25:55.000Z","lastSignal":"2026-10-31T18:17:09.083Z","updated":"2026-11-04T14:43:58.877Z","revision":1,"life":[{"status":"Born","at":"2026-10-31T18:17:09.083Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-10-31T18:17:09.083Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-10-31T17:25:55.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-10-31T18:17:09.083Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261031-JD6M created."}],"stages":[{"name":"Disclosed","at":"2026-10-31T18:17:09.083Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-10-31T18:17:09.083Z","detail":"CVSS 7.7 · EPSS 0.4%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-10-31T17:25:55.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-10-31T17:25:55.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-120208 (important)","text":"libheif: libheif: Arbitrary code execution via heap-based buffer overflow","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-120208.json"},{"at":"2026-10-31T18:17:09.083Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-120208 (CVSS 7.7)","text":"libheif 1.18.0 before 1.23.3 contains a heap-based buffer overflow vulnerability in unc_decoder_mixed_interleave::processTile() that allows attackers to write out of bounds by supplying chroma components with unequal bit depths. Attackers can craft a HEIF file declaring, for example, 16-bit Cb and 8-bit Cr to trigger file-controlled heap writes past the Cr plane, potentially achieving code execution in image-processing pipelines.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120208"}],"crowd":[],"reference":{"nvd":{"published":"2026-10-31T18:17:09.083","score":7.7,"severity":"HIGH","desc":"libheif 1.18.0 before 1.23.3 contains a heap-based buffer overflow vulnerability in unc_decoder_mixed_interleave::processTile() that allows attackers to write out of bounds by supplying chroma components with unequal bit depths. Attackers can craft a HEIF file declaring, for example, 16-bit Cb and 8","product":"","seen":1793803438877},"kev":null,"epss":{"epss":0.00365,"pct":0.30498,"at":1793803438877},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}