CVE-2026-87491 KEV
8.8
HIGH · CVSS 3.1 · EPSS 3.1% (pctl 87)
Patch first
On CISA KEV — known exploited in the wild, due 2026-09-23.
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)
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 3.14% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | yes — remediate by 2026-09-23 |
| Public exploit | none known |
| Published | 2026-09-09 |
| Last modified | 2026-09-21 |
CISA KEV
| Name | Google Chromium V8 Out of Bounds Write Vulnerability |
|---|---|
| Added | 2026-09-09 |
| Due | 2026-09-23 |
| Vendor / product | Google / Chromium V8 |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| chrome |
References
→ the Explorer · watch your stack · NVD