CVE-2026-3910 — Google Chromium V8 Improper Restriction of Operations Within the Bounds of a Memory Buffer Vulnerability

Overview

Google Chromium V8 contains an improper restriction of operations within the bounds of a memory buffer 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.

Vulnerability details

CVE ID

CVE-2026-3910

Vulnerability

Google Chromium V8 Improper Restriction of Operations Within the Bounds of a Memory Buffer Vulnerability

Vendor

Google

Affected products

Google: Chromium V8

Severity

HIGH

Exploitation status

Actively exploited in the wild (CISA KEV)

EPSS score

2.1% probability of exploitation in 30 days · 79th percentile

Published

2026-03-13

Remediation guidance

CVE-2026-3910 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.

Apply the vendor's official security update for Google the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.

FIRST EPSS estimates a 2.1% probability that CVE-2026-3910 will be exploited within the next 30 days (79th percentile of all CVEs) — useful for risk-based patch sequencing.

Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.

Authoritative references

• NVD — National Vulnerability Database
• MITRE CVE Record
• CISA Known Exploited Vulnerabilities Catalog
• FIRST EPSS — Exploit Prediction Scoring

Related actively-exploited CVEs — Google