Defender for Endpoint and Antivirus
CVE-2026-50658: Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Defender allows an authorized attacker to elevate privileges locally.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7
EPSS0.20%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Microsoft Defender for Endpoint for Mac 101.0 | 101.26042.0020 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Time-of-check time-of-use (toctou) race condition in Microsoft Defender allows an authorized attacker to elevate privileges locally.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.