Apple Safari Web memory corruption

Summaryinfo

A vulnerability classified as critical has been found in Apple Safari. This impacts an unknown function of the component Web Handler. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2025-24223. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple Safari (version now known). This issue affects some unknown processing of the component Web Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The issue was addressed with improved memory handling. This issue is fixed in watchOS 11.5, tvOS 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, Safari 18.5. Processing maliciously crafted web content may lead to memory corruption.

The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2025-24223 since 01/17/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/19/2025).

The vulnerability scanner Nessus provides a plugin with the ID 236932 (Fedora 41 : webkitgtk (2025-c40948de3a)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236932). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Web Browser

Vendor

• Apple

Name

• Safari

License

• commercial

Website

• Vendor: https://www.apple.com/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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