CVE-2026-69414 — 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-2026-69414HIGH

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   .0023   13.7     —

AFFECTED
  Product                              Versions  Fixed
  Microsoft Malware Protection Engine  - –       —

TIMELINE
  Aug 3   Reserved by microsoft
  Aug 14  Published (CNA: microsoft)
  Aug 15  EXPLOIT PUBLISHED — CVE-2026-69414 (Microsoft Malware Protection Engine). Public exploit reference added.
  Aug 18  EXPLOIT PUBLISHED — CVE-2026-69414 (Microsoft Malware Protection Engine). Public exploit reference added.

CWE-284 · CNA: microsoft · CVSS v3.1 · 2 references · NVD status: Modified

Description

Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ". We are working to provide a high quality security update that addresses this vulnerability. We will provide information in this CVE when the update is available.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
August 3, 2026	Reserved	Reserved by microsoft
August 14, 2026	Published	Published (CNA: microsoft)
August 15, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-69414 (Microsoft Malware Protection Engine). Public exploit reference added.
August 18, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-69414 (Microsoft Malware Protection Engine). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Microsoft Malware Protection Engine	—	-	—

Weaknesses

CWE-284

References (2)

https://github.com/MSNightmare/ShieldBreak [exploit]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69414 [vendor-advisory, patch]

Authoritative record: CVE-2026-69414 at cve.org

Vendors: microsoft

Weaknesses: CWE-284

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-69414 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.