What’s Vulnerable › Vulnerabilities

CVE-2026-43731

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-29 · updated 2026-08-17
• Weakness: CWE-416

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to memory corruption.

Affected products

• Apple iPadOS: before 26.5.2 — fixed in 26.5.2
• Apple Iphone Os: before 26.5.2 — fixed in 26.5.2
• Apple macOS: from 26.0 before 26.5.2 — fixed in 26.5.2
• Apple Safari: before 26.5.2 — fixed in 26.5.2

How to fix

Upgrade to a fixed version: Apple iPadOS 26.5.2; Apple Iphone Os 26.5.2; Apple macOS 26.5.2; Apple Safari 26.5.2. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/127594
• https://support.apple.com/en-us/127595
• https://support.apple.com/en-us/127685
• https://support.apple.com/en-us/128068
• https://support.apple.com/en-us/128069
• https://support.apple.com/en-us/128070
• https://support.apple.com/en-us/148287

Get alerted when CVE-2026-43731 or the next vulnerability affects your stack