CVE-2026-43656

high

Description

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Parsing a maliciously crafted file may lead to an unexpected app termination.

References

https://isc.sans.edu/diary/rss/32976

https://support.apple.com/en-us/127117

https://support.apple.com/en-us/127116

https://support.apple.com/en-us/127115

https://support.apple.com/en-us/127111

https://support.apple.com/en-us/127110

Details

Source: Mitre, NVD

Published: 2026-05-11

Updated: 2026-05-13

Risk Information

CVSS v2

Base Score: 7.5

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

Severity: High

CVSS v3

Base Score: 7.3

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

Severity: High

EPSS

EPSS: 0.00021