What is CVE-2026-28954?

CVE-2026-28954 is a high-severity vulnerability in Apple Ios And Ipados, classified under Authentication Bypass by Spoofing. CVSS score: 7.5/10. Published 2026-05-11.

How severe is CVE-2026-28954?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Apple Ios And Ipados

CVE-2026-28954

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.

EPSS: 0.000 (13.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-28954?: CVE-2026-28954 is a high-severity vulnerability in Apple Ios And Ipados, classified under Authentication Bypass by Spoofing. CVSS score: 7.5/10. Published 2026-05-11.
How severe is CVE-2026-28954?: High severity. CVSS v3 base score is 7.5 out of 10.