Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
Security updates
101.26042.0020 — https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/mac-updates?view=o365-worldwide
Vulnerabilities 1
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Medium 4.7CVE-2026-50657 Public exploit
Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability
Exposure of private personal information to an unauthorized actor in Microsoft Defender allows an authorized attacker to disclose information locally.
Revision history
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#1
Information published.
References
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CVE-2026-50657 Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50657
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss