CVE-2026-33825: Microsoft Defender Insufficient Granularity of Access Control Vulnerability

#microsoft #defender #cybersecurity #vulnerability

CVE ID

CVE-2026-33825

Vulnerability Name

Microsoft Defender Insufficient Granularity of Access Control Vulnerability

Project: Microsoft
Product: Defender

Date

Date Added: 2026-04-22
Due Date: 2026-05-06

Description

Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.

Known To Be Used in Ransomware Campaigns?

Unknown

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.