SB2026011215 - Two vulnerabilities in WebKitGTK+ and WPE WebKit

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Improper Initialization (CVE-ID: CVE-2025-46299)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper initialization in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and disclose internal states of the app.

2) Buffer overflow (CVE-ID: CVE-2025-46298)

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

The vulnerability exists due to a boundary error when processing HTML content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and perform a denial of service attack. 

Remediation

Install update from vendor's website.

References

• https://support.apple.com/en-us/125886
• https://www.zerodayinitiative.com/advisories/ZDI-26-057/