CVE-2021-30521

HIGH 8.8CVE-2021-30521 · Published 07/06/2021 · updated 17/06/2026

In short

CVE-2021-30521 is a HIGH (CVSS 8.8) vulnerability affecting chrome (google).
Chance of exploitation in the next 30 days (EPSS): 1.3%, higher than 71.3% of all vulnerabilities.
Fix: update to 91.0.4472.77 or later.

Package	Affected versions	Patched versions
chrome google	`< 91.0.4472.77`	`91.0.4472.77`

Description

Heap buffer overflow in Autofill in Google Chrome on Android prior to 91.0.4472.77 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page.

References

chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html · Release Notes
crbug.com/1208721 · Exploit
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54
security.gentoo.org/glsa/202107-06 · Third Party Advisory

More vulnerabilities in chrome

See all →

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free

Package

Affected versions

Patched versions

chrome

google

< 91.0.4472.77

91.0.4472.77

More vulnerabilities in chrome

See all →