Apple watchOS Web memory corruption

Summaryinfo

A vulnerability marked as critical has been reported in Apple watchOS. Affected by this issue is some unknown functionality of the component Web Handler. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2025-31257. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Apple watchOS (the affected version is unknown). This affects an unknown code of the component Web Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. The summary by CVE is:

This issue was addressed with improved memory handling. This issue is fixed in watchOS 11.5, tvOS 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, Safari 18.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.

The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2025-31257 since 03/27/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 236932 (Fedora 41 : webkitgtk (2025-c40948de3a)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (236932) and CERT Bund (WID-SEC-2025-2365). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• IBM MQ
• NetApp ActiveIQ Unified Manager
• IBM SPSS
• Hitachi Command Suite
• Hitachi Ops Center
• IBM TXSeries
• IBM Sterling Connect:Direct
• IBM DB2
• IBM Rational Application Developer for WebSphere Software
• Oracle Java SE
• Amazon Corretto
• IBM Java
• IBM Semeru Runtime
• IBM Tivoli Netcool/OMNIbus
• Dell NetWorker
• Open Source Camunda
• RealObjects PDFreactor
• IBM License Metric Tool
• IBM DataPower Gateway
• IBM Security Verify Access
• IBM Rational Software Architect
• IBM Cognos Analytics
• Debian Linux
• Amazon Linux 2
• IBM InfoSphere Information Server
• Open Source OpenJDK
• Red Hat Enterprise Linux
• IBM WebSphere Application Server
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• IBM Tivoli Monitoring
• IBM Integration Bus
• IBM Tivoli Network Manager
• IBM Tivoli Business Service Manager
• IBM Business Automation Workflow
• Hitachi Configuration Manager
• IBM QRadar SIEM
• IBM Rational Business Developer
• IBM Tivoli Key Lifecycle Manager
• SUSE openSUSE
• RESF Rocky Linux
• IBM App Connect Enterprise
• Xerox FreeFlow Print Server

Productinfo

Type

• Smartwatch Operating System

Vendor

• Apple

Name

• watchOS

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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