{"id":"cisa-kev-cve-2026-87491","seq":54,"kind":"advisory","title":"[悪用確認] CVE-2026-87491: Google Chromium V8 Out of Bounds Write Vulnerability","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87491","permalink":"https://vulnpulse.app/items/cisa-kev-cve-2026-87491","summary":"Google Chromium V8\nGoogle Chromium V8 contains an out of bounds write vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.\n対応: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. (期限 2026-09-23)","severity":"critical","techs":[],"cves":["CVE-2026-87491"],"tags":["exploited","kev","Google","Chromium V8"],"source":{"id":"cisa-kev","name":"CISA Known Exploited Vulnerabilities"},"published_at":"2026-09-09T00:00:00.000Z","fetched_at":"2026-10-21T16:17:45.406Z"}