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CVE-2026-33825

Microsoft Defender Elevation of Privilege Vulnerability

Published: Apr 14, 2026Updated: Apr 23, 2026 Sources: CVE List NVD BDU
NVD MITRE
7.8CVSS
HIGH

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

EPSS Score
7.9%
Top 7.8%
CISA KEV
Active Exploitation
Since Apr 22, 2026
Exploits
No Known Exploits
Remediation
Patch Available

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

CWE-1220

Affected Products

Microsoft Defender Antimalware Platform
Microsoft
Microsoft Defender Antimalware Platform
Microsoft Corp
defender antimalware platform
microsoft

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Apr 22, 2026
Remediation due:May 6, 2026

Required 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.

Official Patch Available

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825
msrc.microsoft.com
https://deadeclipse666.blogspot.com/2026/04/public-disclosure.html
deadeclipse666.blogspot.com
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33825
cisa.gov
and 1 more references View all →

Timeline

Published
Apr 14, 2026
Added to CISA KEV
Apr 22, 2026
Last Updated
Apr 23, 2026
News mentions
6

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