What’s Vulnerable › Vulnerabilities

CVE-2021-45482

• Severity: medium (CVSS 6.5 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: 2021-12-25 · updated 2026-06-17
• Weakness: CWE-416

Description

In WebKitGTK before 2.32.4, there is a use-after-free in WebCore::ContainerNode::firstChild, a different vulnerability than CVE-2021-30889.

Affected products

• Webkit: before 2.32.4 — fixed in 2.32.4

How to fix

Upgrade to a fixed version: Webkit 2.32.4. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2022/01/21/2
• https://github.com/ChijinZ/security_advisories/tree/master/webkitgtk-2.32.3
• http://www.openwall.com/lists/oss-security/2022/01/21/2
• https://github.com/ChijinZ/security_advisories/tree/master/webkitgtk-2.32.3

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