Apple macOS/watchOS/visionOS/iOS/iPadOS/tvOS up to 26.2 Network Traffic channel accessible

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apple macOS, watchOS, visionOS, iOS, iPadOS and tvOS up to 26.2. Affected by this vulnerability is an unknown functionality of the component Network Traffic Handler. Performing a manipulation results in channel accessible. This vulnerability is known as CVE-2026-20671. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Apple macOS, watchOS, visionOS, iOS, iPadOS and tvOS up to 26.2. This affects an unknown functionality of the component Network Traffic Handler. The manipulation with an unknown input leads to a channel accessible vulnerability. CWE is classifying the issue as CWE-300. The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint. This is going to have an impact on confidentiality. The summary by CVE is:

A logic issue was addressed with improved checks. This issue is fixed in watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3. An attacker in a privileged network position may be able to intercept network traffic.

It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2026-20671 since 11/11/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 02/13/2026). The attack technique deployed by this issue is T1557 according to MITRE ATT&CK.

Upgrading to version 26.3 eliminates this vulnerability.

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Productinfo

Type

• Smartwatch Operating System

Vendor

• Apple

Name

• iOS
• iPadOS
• macOS
• tvOS
• visionOS
• watchOS

Version

• 26.0
• 26.1
• 26.2

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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CPE 2.2info

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