CVE-2026-28821 — HIGH (8.4)

Q: How severe is CVE-2026-28821?

CVE-2026-28821 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-28821?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.

Vulnerability Description

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to gain elevated privileges.

CVSS Score

8.4

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apple	Macos	>= 14.0, < 14.8.5

Related Weaknesses (CWE)

CWE-20

References

https://support.apple.com/en-us/126794Release NotesVendor Advisory
https://support.apple.com/en-us/126795Release NotesVendor Advisory
https://support.apple.com/en-us/126796Release NotesVendor Advisory

FAQ

What is CVE-2026-28821?

CVE-2026-28821 is a vulnerability with a CVSS score of 8.4 (HIGH). A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8...

How severe is CVE-2026-28821?

CVE-2026-28821 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-28821?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.