Vulnerability in Microsoft Malware Protection Engine
CVE-2026-69414
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.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
References
- secure@microsoft.com (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-69414?
- CVE-2026-69414 is a high-severity vulnerability in Microsoft Malware Protection Engine. CVSS score: 7.8/10. Published 2026-08-14.
- How severe is CVE-2026-69414?
- High severity. CVSS v3 base score is 7.8 out of 10.