CVE-2026-43663

MEDIUM 6.5CVE-2026-43663 · Published 29/06/2026 · updated 17/08/2026

In short

CVE-2026-43663 is a MEDIUM (CVSS 6.5) vulnerability affecting safari (apple).
Chance of exploitation in the next 30 days (EPSS): 0.37%, higher than 30.7% of all vulnerabilities.
Fix: update to 26.5.2 or later.

Package	Affected versions	Patched versions
safari apple	`< 26.5.2`	`26.5.2`

Description

The issue was addressed with improved memory handling. 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 an unexpected process crash.

References

support.apple.com/en-us/127594 · Vendor Advisory
support.apple.com/en-us/127595 · Vendor Advisory
support.apple.com/en-us/127685 · Vendor Advisory
support.apple.com/en-us/128068
support.apple.com/en-us/128069
support.apple.com/en-us/128070
support.apple.com/en-us/148287

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Package

Affected versions

Patched versions

safari

apple

< 26.5.2

26.5.2

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