What is CVE-2021-21140?

CVE-2021-21140 is a medium-severity vulnerability in Google Chrome, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2021-02-09.

How severe is CVE-2021-21140?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Buffer overflow in Google Chrome

CVE-2021-21140

Uninitialized use in USB in Google Chrome prior to 88.0.4324.96 allowed a local attacker to potentially perform out of bounds memory access via via a USB device.

Vulnerability class: Buffer Overflow

EPSS: 0.008 (51.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Chrome — versions unspecified
Microsoft Edge

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

chrome-cve-admin@google.com (x_refsource_MISC, Release Notes, Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
chrome-cve-admin@google.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21140?: CVE-2021-21140 is a medium-severity vulnerability in Google Chrome, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2021-02-09.
How severe is CVE-2021-21140?: Medium severity. CVSS v3 base score is 6.8 out of 10.