What is CVE-2026-87633?

CVE-2026-87633 is a high-severity vulnerability in Google Chrome, classified under Use After Free. CVSS score: 8.6/10. Published 2026-09-09.

How severe is CVE-2026-87633?

High severity. CVSS v3 base score is 8.6 out of 10.

Use After Free in Google Chrome

CVE-2026-87633

Use after free in Views in Google Chrome prior to 153.0.8010.36 allowed a local attacker to execute arbitrary code outside the sandbox via UI Interaction. (Chromium security severity: High)

Vulnerability class: Use-After-Free

Published 2026-09-09 · last modified 2026-09-10.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (4.0th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% 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: 0.002 · change: 0.000

Affected products

Google Chrome

Weakness classification (CWE)

CWE-416 — Use After Free

References

chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/516996291 (Permissions Required)

Frequently asked questions

What is CVE-2026-87633?: CVE-2026-87633 is a high-severity vulnerability in Google Chrome, classified under Use After Free. CVSS score: 8.6/10. Published 2026-09-09.
How severe is CVE-2026-87633?: High severity. CVSS v3 base score is 8.6 out of 10.