7.8Alta
KEV
Usada en ransomware
CVE-2026-33825Microsoft Defender Elevation of Privilege Vulnerability
Explotación conocida — Microsoft Defender Insufficient Granularity of Access Control Vulnerability
CISA confirmó el 22.04.2026 que esta vulnerabilidad se usa en ataques reales. Plazo para las agencias federales de EE. UU.: 06.05.2026.
Acción requerida: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825 ; https://nvd.nist.gov/vuln/detail/CVE-2026-33825
Descripción
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
Debilidad (CWE):
CWE-1220
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| microsoft | defender antimalware platform | < 4.18.26030.3011 | |
| microsoft | microsoft defender | 4.0.0.0 – < 4.18.26030.3011 | |
| Microsoft | Microsoft Defender Antimalware Platform | 4.0.0.0 – < 4.18.26030.3011 |
Referencias y parches
- Microsoft Defender Elevation of Privilege Vulnerability vendor-advisorypatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33825 US Government Resource
- https://www.huntress.com/blog/nightmare-eclipse-intrusion Third Party Advisory
Coincidencias CPE (NVD) (1)
cpe:2.3:a:microsoft:defender_antimalware_platform:*:*:*:*:*:*:*:*< 4.18.26030.3011