Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825
https://www.securityweek.com/microsoft-patches-exploited-sharepoint-zero-day-and-160-other-vulnerabilities/
https://www.tenable.com/blog/microsofts-april-2026-patch-tuesday-addresses-163-cves-cve-2026-32201
Source: Mitre, NVD
Published: 2026-04-14
Updated: 2026-04-14
Named Vulnerability: BlueHammer
Base Score: 6.8
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High