Vulnerability · Published Jul 28, 2023 · Assigned by Chrome
CVE-2021-4321
Medium 4.3
In plain English
A medium-severity security flaw in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.3Medium
Exploit odds (30 days)0.5%top 54.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Policy bypass in Blink in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 97.0.4692.71-0.1 | DEBIAN-CVE-2021-4321 |
| Debian:13 | chromium | 97.0.4692.71-0.1 | DEBIAN-CVE-2021-4321 |
| Debian:14 | chromium | 97.0.4692.71-0.1 | DEBIAN-CVE-2021-4321 |