Home

Description

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

PUBLISHED Reserved 2026-03-24 | Published 2026-04-14 | Updated 2026-06-01 | Assigner microsoft




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

CISA Known Exploited Vulnerability

Date added 2026-04-22 | Due date 2026-05-06

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

Problem types

CWE-1220: Insufficient Granularity of Access Control

Product status

4.0.0.0 (custom) before 4.18.26030.3011
affected

References

www.huntress.com/blog/nightmare-eclipse-intrusion third-party-advisory

www.cisa.gov/...erabilities-catalog?field_cve=CVE-2026-33825 government-resource

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825 (Microsoft Defender Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2026-33825)

nvd.nist.gov (CVE-2026-33825)

Download JSON