Apple watchOS up to 18.2 Media File out-of-bounds

Summaryinfo

A vulnerability categorized as critical has been discovered in Apple watchOS. Affected by this issue is some unknown functionality of the component Media File Handler. Such manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2025-43346. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple watchOS and classified as critical. Affected by this issue is an unknown functionality of the component Media File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in tvOS 26, watchOS 26, iOS 18.7 and iPadOS 18.7, visionOS 26, macOS Tahoe 26, iOS 26 and iPadOS 26. Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory.

The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2025-43346 since 04/16/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 26.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202509-2288). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Smartwatch Operating System

Vendor

• Apple

Name

• watchOS

Version

• 2.2.2
• 3
• 3.1
• 3.1.1
• 3.1.3
• 3.2
• 3.2.2
• 3.2.3
• 4.0
• 4.2
• 4.2.2
• 4.2.3
• 4.3
• 4.3.1
• 4.3.2
• 4.4.2
• 5.0
• 5.1
• 5.1.3
• 5.2
• 5.2.1
• 5.3
• 5.3.2
• 5.3.7
• 5.3.9
• 6.0
• 6.1
• 6.1.2
• 6.2
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.8
• 6.2.9
• 7.0
• 7.0.3
• 7.1
• 7.2
• 7.3
• 7.3.2
• 7.3.3
• 7.4
• 7.4.1
• 7.5
• 7.6
• 7.6.2
• 8.0
• 8.1
• 8.3
• 8.4
• 8.5
• 8.6
• 8.7
• 8.8.1
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.5.1
• 9.5.2
• 9.6
• 10.0
• 10.5
• 10.15.0
• 10.15.1
• 12.1
• 13.0
• 13.7
• 14.0
• 15
• 15.1
• 18
• 18.1
• 18.2

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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CPE 2.2info

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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