CVE-2026-43731CWE-416

CVE-2026-43731

High · published June 30, 2026

CVSS v3.1

8.8

EPSS

Percentile

33.6

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v3.1: 8.8 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0: Not supplied
EPSS: 0.00405 · 33.6th percentile
Weakness: CWE-416 · Use After Free
Published: 2026-06-30T00:17Z

Affected products (4)

Product	Versions	Fixed in
apple/safari	< 26.5.2	26.5.2
apple/ipados	< 26.5.2	26.5.2
apple/iphone_os	< 26.5.2	26.5.2
apple/macos	≥ 26.0, < 26.5.2	26.5.2

References (7)

https://support.apple.com/en-us/127594 · [email protected]https://support.apple.com/en-us/127595 · [email protected]https://support.apple.com/en-us/127685 · [email protected]https://support.apple.com/en-us/128068 · [email protected]https://support.apple.com/en-us/128069 · [email protected]https://support.apple.com/en-us/128070 · [email protected]https://support.apple.com/en-us/148287 · [email protected]

EPSS history

Timeline

29 JUN 19:43Z
A use-after-free issue was addressed with improved memory management
cvelistv5