CVE-2026-87491

CISA KEV
ACT NOW Priority: 0.00 BB Relevance: 1/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

Description

Google 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.

CISA Known Exploited Vulnerability

Vendor / Product Google — Chromium V8
Date Added 2026-09-09
Remediation Due 2026-09-23
https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-87491

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
google chrome < 153.0.8010.36

Bug Bounty Relevance

1 / 100
✓ Known exploited (KEV)

CVSS Score

Unscored

EPSS — Exploitation Probability

3.51%
Raw Score 0.035070
Percentile 89.1%
Date 2026-10-28

Intelligence Sources

kev ref →