Unrated severityNVD Advisory· Published Jun 29, 2026· Updated Jul 27, 2026

CVE-2026-43718

Description

A stack overflow was addressed with improved input validation. This issue is fixed in Safari 26.5.2, 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 Safari crash.

Affected products

Apple Inc./tvOSllm-fuzzy
Range: 26.6
Apple Inc./Ipadosllm-fuzzy
Range: 26.5.2
Apple Inc./watchOSllm-fuzzy
Range: 26.6
Apple Inc./Visionosllm-fuzzy
Range: 26.6
Apple Inc./Safarillm-fuzzy
Range: 26.5.2
Apple Inc./macOS Tahoellm-fuzzy
Range: 26.5.2
Apple Inc./iOSllm-fuzzy
Range: 26.5.2

Patches

Vulnerability mechanics

References

support.apple.com/en-us/127594mitre
support.apple.com/en-us/127595mitre
support.apple.com/en-us/127685mitre
support.apple.com/en-us/128068mitre
support.apple.com/en-us/128069mitre
support.apple.com/en-us/128070mitre

News mentions

Apple Patches Everything (July 2026), (Wed, Jul 29th)
SANS Internet Storm Center · Jul 29, 2026

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000