Detections
Analytics

CVE-2026-87491

high

Description

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)

References

https://www.securityweek.com/chrome-153-patches-seventh-zero-day-of-2026/

https://www.helpnetsecurity.com/2026/09/09/google-chrome-cve-2026-87491-zero-day-flaw/

https://www.bleepingcomputer.com/news/security/google-patches-seventh-chrome-zero-day-exploited-in-attacks-this-year/

https://thehackernews.com/2026/09/chrome-v8-zero-day-exploited-in-wild.html

https://securityaffairs.com/198757/security/google-fixes-the-seventh-actively-exploited-chrome-zero-day-of-2026.html

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-87491

https://issues.chromium.org/issues/543557673

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html

Details

Source: Mitre, NVD

Published: 2026-09-09

Updated: 2026-09-09

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00291