CVE-2026-33825 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-33825HIGH

Microsoft Defender Elevation of Privilege Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .0675   93.4   YES

AFFECTED
  Product                                  Versions   Fixed
  Microsoft Defender Antimalware Platform  4.0.0.0 –  —

TIMELINE
  Mar 24  Reserved by microsoft
  Apr 22  Added to CISA KEV, remediation due 2026-05-06
  Apr 22  Published (CNA: microsoft)
  Jul 24  ENRICHED — CVE-2026-33825 (Microsoft Defender). Received CVSS 7.8 and CPE data from NVD.

CWE-1220 · CNA: microsoft · CVSS v3.1 · 3 references · NVD status: Analyzed · KEV due May 6, 2026

Description

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

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
March 24, 2026	Reserved	Reserved by microsoft
April 22, 2026	KEV ADDED	Added to CISA KEV, remediation due 2026-05-06
April 22, 2026	Published	Published (CNA: microsoft)
July 24, 2026	ENRICHED	ENRICHED — CVE-2026-33825 (Microsoft Defender). Received CVSS 7.8 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Microsoft Defender Antimalware Platform	—	4.0.0.0	—

Weaknesses

CWE-1220

References (3)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825 [vendor-advisory, patch]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33825 [government-resource]
https://www.huntress.com/blog/nightmare-eclipse-intrusion [third-party-advisory]

Authoritative record: CVE-2026-33825 at cve.org

Vendors: microsoft

Weaknesses: CWE-1220

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-33825 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.