What’s Vulnerable › Vulnerabilities

CVE-2021-21192

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-16 · updated 2026-06-17
• Weakness: CWE-787

Description

Heap buffer overflow in tab groups in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected products

• Debian Linux: 10.0
• Fedoraproject Fedora: 32
• Google Chrome: before 89.0.4389.90 — fixed in 89.0.4389.90

How to fix

Upgrade to a fixed version: Google Chrome 89.0.4389.90. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html
• https://crbug.com/1181387
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/
• https://security.gentoo.org/glsa/202104-08
• https://www.debian.org/security/2021/dsa-4886
• https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html
• https://crbug.com/1181387
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/
• https://security.gentoo.org/glsa/202104-08
• https://www.debian.org/security/2021/dsa-4886

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