CVE-2026-20631

HIGH

macOS < 26.4 - Privilege Escalation

Title source: llm
STIX 2.1

Description

A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be able to elevate privileges.

References (1)

Core 1

Scores

CVSS v3 8.8
EPSS 0.0004
EPSS Percentile 12.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

Status published
Products (2)
Apple/macOS < 26.4
apple/macos 26.0 - 26.4
Published Mar 25, 2026
Tracked Since Mar 25, 2026