Apple Safari Web memory corruption

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple Safari. Affected by this vulnerability is an unknown functionality of the component Web Handler. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2023-43010. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Safari (affected version unknown). It has been rated as critical. This issue affects an unknown functionality 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 iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2, Safari 17.2, iOS 16.7.15 and iPadOS 16.7.15, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.

It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2023-43010 since 09/14/2023. 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. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 03/23/2026).

The vulnerability scanner Nessus provides a plugin with the ID 303116 (Linux Distros Unpatched Vulnerability : CVE-2023-43010), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (303116) and CERT Bund (WID-SEC-2026-0705). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Apple iOS
• Apple iPadOS

Productinfo

Type

• Web Browser

Vendor

• Apple

Name

• Safari

License

• commercial

Website

• Vendor: https://www.apple.com/

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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