CVE-2026-78236

EUVD-2026-66331
An insecure PIN derivation mechanism in ABR allows a low-privileged user to escalate privileges to administrator by communicating over Cross-Process Communication (XPC) while masquerading as an Apple-signed process.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 0.66%
Common Weakness Enumeration
References
https://docs.adminbyrequest.com/security-advisories/abr-mac-26-01.htm
https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-110/