Microsoft EUVD-2026-22643

| CVE-2026-33825 HIGH
Insufficient Granularity of Access Control (CWE-1220)
2026-04-14 microsoft GHSA-8vp7-4rmv-4868
Information Disclosure Microsoft
7.8
CVSS 3.1
Temporal: 7.0
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Added to CISA KEV
Apr 22, 2026 - 20:02 CISA
Analysis Updated
Apr 17, 2026 - 14:27 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Apr 17, 2026 - 14:22 vuln.today
cvss_changed
Analysis Generated
Apr 14, 2026 - 19:24 vuln.today

DescriptionNVD

Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.

AnalysisAI

Privilege escalation in Microsoft Defender Antimalware Platform versions before 4.18.26030.3011 allows authenticated local attackers to gain elevated system privileges through insufficiently granular access controls. CVSS 7.8 (High) reflects local attack vector requiring low privileges. …

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RemediationAI

Within 24 hours: Inventory all systems running Microsoft Defender Antimalware Platform and identify current versions via Windows Update or Microsoft Defender management console. Within 7 days: Deploy Microsoft Defender Antimalware Platform version 4.18.26030.3011 or later across all endpoints using WSUS, Intune, or equivalent patch management system. …

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EUVD-2026-22643 vulnerability details – vuln.today
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