CVE entry · CVE-2026-3910
CVE-2026-3910: Google Chromium V8 Improper Restriction of Operations Within the Bounds of a Memory Buffer Vulnerability
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.
- Actively exploited: added to CISA’s KEV catalog on March 13, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: March 27, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Google Chromium V8, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (chromereleases.googleblog.com)
- NVD entry (NIST)
- CISA KEV catalog