CVE-2026-87491High· 8.8▾ Abyssal⚠ Exploited in the wild0dayPoC availableOut 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)
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 48.4 · likelihood 0.2 · exploitation 25
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 9.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Federal remediation due Sep 23, 2026
0.3%
8.8 → —
high → none
1 GitHub repo
— → 8.8
none → high
0.3% → 1.0%
Last analysed / modified upstream
Added to the CISA catalog on Sep 9, 2026. Federal remediation due Sep 23, 2026. View catalog ↗
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)
chrome < 153.0.8010.36Upgrade past the affected range:
chrome 153.0.8010.36Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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