CVE-2021-30543

HIGH 8.8CVE-2021-30543 · Published 07/06/2021 · updated 17/06/2026

In short

CVE-2021-30543 is a HIGH (CVSS 8.8) vulnerability affecting chrome (google).
Chance of exploitation in the next 30 days (EPSS): 0.79%, higher than 56.5% 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

Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.

References

chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html · Release Notes
crbug.com/1203607 · Exploit
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WKQDE3PWDKASAPSUJYMOQGL73L3YQRFS

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Package

Affected versions

Patched versions

chrome

google

< 91.0.4472.77

91.0.4472.77

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