CVE-2026-43718

medium

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.

References

https://isc.sans.edu/diary/rss/33114

https://support.apple.com/en-us/128070

https://support.apple.com/en-us/128069

https://support.apple.com/en-us/128068

https://support.apple.com/en-us/127685

https://support.apple.com/en-us/127595

https://support.apple.com/en-us/127594

Details

Source: Mitre, NVD

Published: 2026-06-29

Updated: 2026-07-27

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00284