Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-69414
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 .0033 23.5 —
AFFECTED
Product Versions Fixed
Microsoft Malware Protection Engine 1.1.0.0 – —
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.
Aug 21 EXPLOIT PUBLISHED — CVE-2026-69414 (Microsoft Malware Protection Engine). Public exploit reference added.
Sep 8 EXPLOIT PUBLISHED — CVE-2026-69414 (Microsoft Malware Protection Engine). Public exploit reference added.
Description
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".
Lifecycle
Complete event history — 6 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. |
| August 21, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-69414 (Microsoft Malware Protection Engine). Public exploit reference added. |
| September 8, 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 | — | 1.1.0.0 | — |
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 Sunday, October 4, 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.
