What is CVE-2021-37996?

CVE-2021-37996 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2021-11-02.

How severe is CVE-2021-37996?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Improper input validation in Google Chrome

CVE-2021-37996

Insufficient validation of untrusted input Downloads in Google Chrome prior to 95.0.4638.54 allowed a remote attacker to bypass navigation restrictions via a malicious file.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2021-11-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.3th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Google Chrome — versions unspecified
Debian Linux — versions 10.0, 11.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_19.html (Vendor Advisory)
crbug.com/1243020 (Permissions Required, Vendor Advisory)
www.debian.org/security/2022/dsa-5046 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2021-37996?: CVE-2021-37996 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2021-11-02.
How severe is CVE-2021-37996?: Medium severity. CVSS v3 base score is 5.5 out of 10.