What is CVE-2026-3926?

CVE-2026-3926 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2026-03-11.

How severe is CVE-2026-3926?

High severity. CVSS v3 base score is 8.8 out of 10.

Out-of-bounds Read in Apple macOS

CVE-2026-3926

Out of bounds read in V8 in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: Medium)

Vulnerability class: Buffer Overflow

Published 2026-03-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (28.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_10.html (Release Notes, Vendor Advisory)
issues.chromium.org/issues/478659010 (Permissions Required)

Frequently asked questions

What is CVE-2026-3926?: CVE-2026-3926 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2026-03-11.
How severe is CVE-2026-3926?: High severity. CVSS v3 base score is 8.8 out of 10.