cve-2026-50657

The cve-2026-50657 tag covers Microsoft Defender for Endpoint for Mac security guidance related to an information-disclosure vulnerability. The flaw can expose private personal information to a locally authenticated attacker. Microsoft fixed the issue in Defender for Endpoint for Mac build 101.26042.0020, and organizations using releases from 101.0.0 through versions before that build are advised to update the security client. The available guidance also notes that installing fresh malware definitions alone is not a substitute for the client update. This tag tracks the July 2026 Microsoft security disclosure and related update information for affected Mac deployments.