Apple iOS/iPadOS up to 18.7 UDP Server Socket state issue

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS and classified as problematic. The affected element is an unknown function of the component UDP Server Socket. Executing a manipulation can lead to state issue. This vulnerability is handled as CVE-2025-43359. It is possible to launch the attack on the local host. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS and iPadOS. It has been declared as problematic. This vulnerability affects an unknown code of the component UDP Server Socket. The manipulation with an unknown input leads to a state issue vulnerability. The CWE definition for the vulnerability is CWE-371. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A logic issue was addressed with improved state management. This issue is fixed in tvOS 26, macOS Sonoma 14.8, macOS Sequoia 15.7, iOS 18.7 and iPadOS 18.7, visionOS 26, watchOS 26, macOS Tahoe 26, iOS 26 and iPadOS 26. A UDP server socket bound to a local interface may become bound to all interfaces.

The advisory is available at support.apple.com. This vulnerability was named CVE-2025-43359 since 04/16/2025. The exploitation appears to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/16/2025).

Upgrading to version 26.0 eliminates this vulnerability.

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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
• 18.7

License

• commercial

Website

• Vendor: https://www.apple.com/

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