Apple iOS/iPadOS/macOS prior 18.7.10/26.6.1/26.6.2 memory corruption

Summaryinfo

A vulnerability was found in Apple iOS, iPadOS and macOS. It has been rated as very critical. The impacted element is an unknown function. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2026-64779. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Apple iOS, iPadOS and macOS. This issue affects an unknown function. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.

It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2026-64779 since 07/20/2026. 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. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 08/18/2026).

The vulnerability scanner Nessus provides a plugin with the ID 335968 (macOS 26.x < 26.6.2 Multiple Vulnerabilities (148281)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.7.10, 26.6.1 or 26.6.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (335968). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS
• iPadOS
• macOS

License

• commercial

Website

• Vendor: https://www.apple.com/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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