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CVE-2026-87491

HighPublished

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...

Published: Sep 9, 2026
Updated: Sep 21, 2026
Assigning CNA: Chrome
Evidence observed: Sep 9, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

1.0%

Low · next 30 days

Percentile: 60.7%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

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)

Sources

CVE-2026-87491-and-CVE-2026-85046-the-bagel-fell-off-the-counterExploit
Chrome 152 V8 exploit chaining CVE-2026-85046 and CVE-2026-87491 to corrupt the heap, forge Wasm metadata, and execute native code from the renderer.

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