Google Chromium V8 Out-of-Bounds Read and Write Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH

8.8 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

EPSS Prediction

5.47 %

Predictive Probability

Percentile Rank

90.4 th

Documented as more likely to be exploited than 90.4% of known CVEs.

Detection Date

Jun 09, 2026

Remediation Due

Jun 23, 2026

CISA Catalog Active

Threat Analysis

Google Chromium V8 out-of-bounds read and write vulnerability that could allow a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Remediation Directive

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

External Intelligence

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html

https://issues.chromium.org/issues/506689381

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2026-11645