What is CVE-2021-21117?

CVE-2021-21117 is a high-severity vulnerability in Google Chrome, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2021-02-09.

How severe is CVE-2021-21117?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Google Chrome

CVE-2021-21117

Insufficient policy enforcement in Cryptohome in Google Chrome prior to 88.0.4324.96 allowed a local attacker to perform OS-level privilege escalation via a crafted file.

EPSS: 0.002 (12.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Google Chrome — versions unspecified

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access
CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

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)

Frequently asked questions

What is CVE-2021-21117?: CVE-2021-21117 is a high-severity vulnerability in Google Chrome, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2021-02-09.
How severe is CVE-2021-21117?: High severity. CVSS v3 base score is 7.8 out of 10.