Vulnerability details
CVE-2026-87491
Actively exploited
Google Chrome
CVSS 3.1
8.8High
Official 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)
Related news
-
Google Issues Chrome Security Update for Eighth Actively Exploited Zero-Day of 2026
The Hacker News · 7 h ago
-
Google fixes the eighth actively exploited Chrome zero-day of 2026
Security Affairs · 9 h ago
-
Chrome Update Patches Exploited XML Zero-Day, Eighth This Year
SecurityWeek · 13 h ago
-
Google patches eighth Chrome zero-day exploited in attacks this year
BleepingComputer · 15 h ago
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Chrome | 153.0.8010.36 ≤ v < 153.0.8010.36 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-09-09
- Last updated
- 2026-09-21
- State
- Published
- Assigner (CNA)
- Chrome
- Kolun priority
- 86 · Critical
CISA KEV catalog
- Date added
- 2026-09-09
- Due date
- 2026-09-23
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
3.5%
Probability of exploitation in 30 days
89.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-787Out of bounds write