What’s Vulnerable › Vulnerabilities

CVE-2020-13543

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-12-03 · updated 2026-06-17
• Weakness: CWE-416

Description

A code execution vulnerability exists in the WebSocket functionality of Webkit WebKitGTK 2.30.0. A specially crafted web page can trigger a use-after-free vulnerability which can lead to remote code execution. An attacker can get a user to visit a webpage to trigger this vulnerability.

Affected products

• Webkit: 2.30.0

References

• https://security.gentoo.org/glsa/202012-10
• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1155
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://security.gentoo.org/glsa/202012-10
• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1155
• https://www.oracle.com/security-alerts/cpuapr2022.html

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