What is CVE-2021-4101?

CVE-2021-4101 is a high-severity vulnerability in Google Chrome, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2022-02-11.

How severe is CVE-2021-4101?

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

Buffer overflow in Google Chrome

CVE-2021-4101

Heap buffer overflow in Swiftshader in Google Chrome prior to 96.0.4664.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Vulnerability class: Buffer Overflow

Published 2022-02-11 · 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: 0.010 (62.9th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Google Chrome — versions unspecified

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html (Release Notes, Vendor Advisory)
crbug.com/1262080 (Third Party Advisory)

Frequently asked questions

What is CVE-2021-4101?: CVE-2021-4101 is a high-severity vulnerability in Google Chrome, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2022-02-11.
How severe is CVE-2021-4101?: High severity. CVSS v3 base score is 8.8 out of 10.