What’s Vulnerable › Vulnerabilities

CVE-2021-21146

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-09 · updated 2026-06-17
• Weakness: CWE-416

Description

Use after free in Navigation in Google Chrome prior to 88.0.4324.146 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Affected products

• Fedoraproject Fedora: 32, 33
• Google Chrome: before 88.0.4324.146 — fixed in 88.0.4324.146

How to fix

Upgrade to a fixed version: Google Chrome 88.0.4324.146. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop.html
• https://crbug.com/1161705
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
• https://security.gentoo.org/glsa/202104-08
• https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop.html
• https://crbug.com/1161705
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
• https://security.gentoo.org/glsa/202104-08

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