CVE-2026-33825

HIGH CISA KEV EPSS 93.2%
Published Apr 14, 20262mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 14, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
KEV Listed Apr 22, 2026 2mo ago
KEV Due May 6, 2026 56d overdue

Description

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

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
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

Threat Intelligence

CISA Known Exploited Overdue 56d
Added
Apr 22, 2026
Due
May 6, 2026

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

EPSS Exploit Probability
93.2% percentile
Exploit & Patch Status
Actively Exploited (KEV)
No Patch Available

Weaknesses 1

CWE-1220

Affected Products 1

VendorProductVersionRange
microsoftdefender_antimalware_platform* <4.18.26030.3011

References 3

  • msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825
    Vendor Advisory
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33825
    US Government Resource
  • huntress.com https://www.huntress.com/blog/nightmare-eclipse-intrusion
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.