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Google Chromium V8 Memory Overflow Vulnerability

CVE-2026-3910

What this means

This is rated high severity (8.8 out of 10). It is on the known-exploited catalogue, which means attacks using it have already been seen. Ask IT whether Google Chrome, Apple Macos and Linux Linux Kernel, and 1 more are in your estate, and treat that as the priority.

Full vendor description

Inappropriate implementation in V8 in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Scoring and exploitation

8.8/ 10
CVSS 3.1 base scoreHigh

Exploitable over the network without any account, but only if a user takes an action, such as opening a file or link. High impact on confidentiality, integrity and availability.

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

Exploitability

Longer bar: easier to attack

Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredNonePR:N
User interactionRequiredUI:R
ScopeUnchangedS:U

Impact

Longer bar: more harm

ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
~2.7% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
Exploited in the wild
Yes — confirmed exploitation (US CISA )
Not reported
Listed product
Google Chromium V8

Weaknesses

CWE-94CWE-119

Affected products ()

  • Google Chrome
  • Apple Macos
  • Linux Linux Kernel
  • Microsoft Windows
Show the raw CPE strings (4)
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

References

3 links from the CVE record, grouped by site; the vendor's advisory comes first.

  • Type 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…

    CVE-2026-3910