Apple tvOS up to 18.4 Video File out-of-bounds write

Summaryinfo

A vulnerability marked as critical has been reported in Apple tvOS. This affects an unknown part of the component Video File Handler. The manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2025-43349. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS and classified as critical. This issue affects an unknown code of the component Video File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is availability. The summary by CVE is:

An out-of-bounds write issue was addressed with improved input validation. 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. Processing a maliciously crafted video file may lead to unexpected app termination.

The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2025-43349 since 04/16/2025. 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 $0-$5k at the moment (estimation calculated on 09/16/2025).

Upgrading to version 26.0 eliminates this vulnerability.

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Productinfo

Type

• Digital Media Player

Vendor

• Apple

Name

• tvOS

Version

• 9.2.2
• 10
• 10.0
• 10.0.1
• 10.1
• 10.1.1
• 10.2
• 10.2.1
• 10.2.2
• 10.15.0
• 11.0
• 11.1
• 11.2
• 11.2.1
• 11.2.5
• 11.2.6
• 11.3
• 11.4
• 11.4.1
• 12.0
• 12.1
• 12.1.1
• 12.1.2
• 12.2
• 12.3
• 12.4
• 12.7
• 13.0
• 13.2
• 13.3.1
• 13.4
• 13.4.5
• 13.4.6
• 13.4.8
• 13.6
• 13.7
• 14.0
• 14.2
• 14.3
• 14.4
• 14.5
• 14.6
• 14.7
• 15
• 15.0
• 15.1
• 15.2
• 15.3
• 15.4
• 15.5
• 15.6
• 15.7.1
• 16.1
• 16.2
• 16.3
• 16.4
• 16.5
• 16.6
• 16.7
• 17.4
• 17.5
• 18
• 18.1
• 18.2
• 18.4

License

• commercial

Website

• Vendor: https://www.apple.com/

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