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 ".

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-28)

CWEs

CWE-59, CWE-269

Published

2026-08-14

Modified

2026-10-28

Record from

the NVD, synced 2026-10-28

Affected

• microsoft:malware_protection_engine

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69414
• https://github.com/MSNightmare/ShieldBreak

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