CVE-2026-28954

high

Description

A file quarantine bypass was addressed with additional checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. A maliciously crafted disk image may bypass Gatekeeper checks.

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

Details

Source: Mitre, NVD

Published: 2026-05-11

Updated: 2026-05-12

Risk Information

CVSS v2

Base Score: 7.8

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

Severity: High

CVSS v3

Base Score: 7.5

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