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CVE-2026-87491

Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Scores

8.8
CVSS 8.8 out of 10, high severity.
3.1%
EPSS 3.1% chance of exploitation in the next 30 days.

The facts

Published
9 September 2026
Last changed
21 September 2026
NVD status
Analyzed
Severity
High, CVSS 8.8 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
Affects
  • google chrome
Known exploited
Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 9 September 2026.
EPSS
3.1% chance of exploitation activity in the next 30 days (percentile 88).

Is there a Securelyn advisory?

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References