What is CVE-2026-79223?

CVE-2026-79223 is a high-severity vulnerability in Google Chrome, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2026-08-25.

How severe is CVE-2026-79223?

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

Integer overflow in Google Chrome

CVE-2026-79223

Integer overflow in Chromium in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to read memory inside the sandbox via a crafted file. (Chromium security severity: Low)

Vulnerability class: Integer Overflow

Published 2026-08-25 · last modified 2026-08-28.

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: 0.003 (22.8th percentile), scored 2026-10-10.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.8% 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: 0.003 · change: +0.001

Affected products

Google Chrome

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176… (Release Notes)
issues.chromium.org/issues/530816571 (Permissions Required)

Frequently asked questions

What is CVE-2026-79223?: CVE-2026-79223 is a high-severity vulnerability in Google Chrome, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2026-08-25.
How severe is CVE-2026-79223?: High severity. CVSS v3 base score is 8.8 out of 10.