What’s Vulnerable › Vulnerabilities

CVE-2023-39928

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-06 · updated 2026-06-17
• Weakness: CWE-416

Description

A use-after-free vulnerability exists in the MediaRecorder API of Webkit WebKitGTK 2.40.5. A specially crafted web page can abuse this vulnerability to cause memory corruption and potentially arbitrary code execution. A user would need to to visit a malicious webpage to trigger this vulnerability.

Affected products

• Debian Linux: 11.0, 12.0
• Fedoraproject Fedora: 37
• Webkit: 2.40.5

References

• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EEMDC5TQAANFH5D77QM34ZTUKXPFGVL/
• https://security.gentoo.org/glsa/202401-33
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1831
• https://webkitgtk.org/security/WSA-2023-0009.html
• https://www.debian.org/security/2023/dsa-5527
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EEMDC5TQAANFH5D77QM34ZTUKXPFGVL/
• https://security.gentoo.org/glsa/202401-33
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1831
• https://webkitgtk.org/security/WSA-2023-0009.html
• https://www.debian.org/security/2023/dsa-5527
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1831

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