Apple iOS/iPadOS up to 18.6 Web memory corruption

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS. It has been rated as critical. This issue affects some unknown processing of the component Web Handler. This manipulation causes memory corruption. This vulnerability appears as CVE-2025-43272. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Apple iOS and iPadOS. Affected by this vulnerability is an unknown function of the component Web Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The issue was addressed with improved memory handling. This issue is fixed in Safari 26, visionOS 26, watchOS 26, macOS Tahoe 26, iOS 26 and iPadOS 26. Processing maliciously crafted web content may lead to an unexpected Safari crash.

It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2025-43272 since 04/16/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 09/25/2025).

The vulnerability scanner Nessus provides a plugin with the ID 265371 (macOS 26.x < 26.0 Multiple Vulnerabilities (125110)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 26.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (265371) and CERT Bund (WID-SEC-2025-2058). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Apple Safari

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS
• iPadOS

Version

• 10.15.0
• 12.4.7
• 12.5.2
• 12.5.3
• 12.7
• 13.0
• 13.0.1
• 13.1
• 13.1.1
• 13.2
• 13.3
• 13.3.1
• 13.4
• 13.4.1
• 13.5
• 13.5.1
• 13.6
• 13.7
• 14.0
• 14.2
• 14.3
• 14.4
• 14.4.1
• 14.4.2
• 14.5
• 14.5.0
• 14.5.1
• 14.6
• 14.7
• 14.7.1
• 14.8
• 15
• 15.0
• 15.0.1
• 15.0.2
• 15.1
• 15.2
• 15.2.1
• 15.3
• 15.3.1
• 15.4
• 15.4.1
• 15.5
• 15.6
• 15.6.1
• 15.7
• 15.7.1
• 15.7.4
• 16.2
• 16.3
• 16.3.1
• 16.4
• 16.4.1
• 16.5
• 16.5.1
• 16.6
• 16.6.1
• 16.7
• 16.7.2
• 16.7.3
• 16.7.6
• 17
• 17.0
• 17.0.3
• 17.1
• 17.2
• 17.3
• 17.4
• 17.4.0
• 17.5
• 17.7
• 17.7.4
• 17.7.5
• 18
• 18.0
• 18.0.1
• 18.1
• 18.2
• 18.3
• 18.3.0
• 18.3.1
• 18.4
• 18.5
• 18.6

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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Entryinfo

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

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