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CVE-2026-9973

HighPublished

Out of bounds write in V8 in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML...

Published: May 28, 2026
Updated: May 30, 2026
Assigning CNA: Chrome
Evidence observed: Aug 28, 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

0.3%

Low · next 30 days

Percentile: 24.1%
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.

Summary

Out of bounds write in V8 in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Sources

CVE-2026-9973-exploitPoC
Proof-of-concept exploit for CVE-2026-9973, a V8 Turboshaft load elimination bug leading to memory corruption, with ongoing sandbox escape research.

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