Apple iOS/iPadOS/Safari/tvOS/visionOS/watchOS prior 26.0 Web Content memory corruption

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple iOS, iPadOS, Safari, tvOS, visionOS and watchOS. The impacted element is an unknown function of the component Web Content Handler. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2025-43419. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Apple iOS, iPadOS, Safari, tvOS, visionOS and watchOS. Affected is some unknown functionality of the component Web Content 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 confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved memory handling. This issue is fixed in Safari 26, tvOS 26, watchOS 26, iOS 26 and iPadOS 26, visionOS 26. Processing maliciously crafted web content may lead to memory corruption.

The advisory is available at support.apple.com. This vulnerability is traded as CVE-2025-43419 since 04/16/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $25k-$100k at the moment (estimation calculated on 01/25/2026).

The vulnerability scanner Nessus provides a plugin with the ID 276569 (Linux Distros Unpatched Vulnerability : CVE-2025-43419), 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 (276569) and CERT Bund (WID-SEC-2025-2657). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

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

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS
• iPadOS
• Safari
• tvOS
• visionOS
• watchOS

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion