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TI-2026-33391 Aliases CVE-2026-45647GHSA-2rv3-8j9r-chw9

Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability

Priority LOW 32CWE-367Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from Microsoft.

Summary

Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00215 11th percentileScored 2026-11-07
Fix Fixed Microsoft Defender for Endpoint for Mac (Microsoft): 101.26042.0011

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Defender for Endpoint for Mac101.0.0 to before 101.26042.0011101.26042.0011Patch availableCNA
  • Microsoft Defender for Endpoint for Mac VendorMicrosoft Affected 101.0.0 to before 101.26042.0011 Fixed in 101.26042.0011 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:macos:*:*before 101.26042.0011VulnerableMicrosoft
  • cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:macos:*:* Versions before 101.26042.0011 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Defender for Endpoint for Mac (Microsoft) Fixed in 101.26042.0011

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft Defender for Endpoint for MacFixed 101.26042.0011 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-45647
  2. 2026-10-03 Alias added: GHSA-2rv3-8j9r-chw9

References

Patch 1

  • TI-2026-17389 Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2024-32723 Microsoft Defender for Endpoint on Android Spoofing Vulnerability CVSS 3.1HIGH 8.1
  • TI-2025-29747 Microsoft Defender for Endpoint Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
  • TI-2024-14076 Microsoft Defender for Endpoint Protection Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
  • TI-2022-16269 Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
  • TI-2026-40552 Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.0
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences