Apple watchOS up to 18.2 Caches information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apple watchOS. Affected by this vulnerability is an unknown functionality of the component Caches Handler. The manipulation leads to information disclosure. This vulnerability is traded as CVE-2025-43356. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple watchOS. It has been rated as problematic. This issue affects an unknown functionality of the component Caches Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

The issue was addressed with improved handling of caches. This issue is fixed in tvOS 26, Safari 26, iOS 18.7 and iPadOS 18.7, visionOS 26, watchOS 26, macOS Tahoe 26, iOS 26 and iPadOS 26. A website may be able to access sensor information without user consent.

The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2025-43356 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. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 265819 (Fedora 42 : webkitgtk (2025-fcc043d407)), 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 (265819) and CERT Bund (WID-SEC-2025-2104). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• IGEL OS
• SUSE openSUSE
• RESF Rocky Linux
• Open Source WebKitGTK

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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CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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