SB2026032026 - Multiple vulnerabilities in WebKitGTK+ and WPE WebKit

Description

This security bulletin contains information about 3 vulnerabilities.

1) Memory corruption (CVE-ID: CVE-2025-43213)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into opening a specially crafted file and crash the browser.

2) Memory corruption (CVE-ID: CVE-2025-43214)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into opening a specially crafted file and crash the browser.

3) Use-after-free (CVE-ID: CVE-2025-43511)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform a denial of service attack. 

The vulnerability exists due to a use-after-free error in WebKit Web Inspector. A remote attacker can trick the victim into visiting a specially crafted website and perform a denial of service attack.

Remediation

Install update from vendor's website.

References

• https://support.apple.com/en-us/124149
• https://webkitgtk.org/security/WSA-2026-0001.html
• https://support.apple.com/en-us/125886