CVE-2026-50657: CWE-359: Exposure of Private Personal Information to an Unauthorized Actor in Microsoft Microsoft Defender for Endpoint for Mac
Exposure of private personal information to an unauthorized actor in Microsoft Defender allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability, tracked as CVE-2026-50657, concerns Microsoft Defender for Endpoint for Mac version 101.0.0. It is classified under CWE-359 (Exposure of Private Personal Information to an Unauthorized Actor). The flaw allows an attacker with local privileges and low user interaction to disclose private personal information. The CVSS v3.1 base score is 4.7, reflecting medium severity with high confidentiality impact but no integrity or availability impact. Microsoft has released an official fix for this vulnerability.
Potential Impact
An authorized attacker with local access and low privileges can disclose private personal information that should be protected by Microsoft Defender for Endpoint for Mac. There is no impact on integrity or availability. The confidentiality impact is high, but exploitation requires local access and high attack complexity.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50657 to remediate this vulnerability.
CVE-2026-50657: CWE-359: Exposure of Private Personal Information to an Unauthorized Actor in Microsoft Microsoft Defender for Endpoint for Mac
Description
Exposure of private personal information to an unauthorized actor in Microsoft Defender allows an authorized attacker to disclose information locally.
CVSS v3.1
Score 4.7medium
Affected software
pkg:github/microsoft/defender-for-endpoint-for-macRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2026-50657, concerns Microsoft Defender for Endpoint for Mac version 101.0.0. It is classified under CWE-359 (Exposure of Private Personal Information to an Unauthorized Actor). The flaw allows an attacker with local privileges and low user interaction to disclose private personal information. The CVSS v3.1 base score is 4.7, reflecting medium severity with high confidentiality impact but no integrity or availability impact. Microsoft has released an official fix for this vulnerability.
Potential Impact
An authorized attacker with local access and low privileges can disclose private personal information that should be protected by Microsoft Defender for Endpoint for Mac. There is no impact on integrity or availability. The confidentiality impact is high, but exploitation requires local access and high attack complexity.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50657 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-05T14:33:50.831Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50657","vendor":"Microsoft"}]
Threat ID: 6a5676a968715ace43f096da
Added to database: 07/14/2026, 17:49:29 UTC
Last enriched: 08/13/2026, 15:11:39 UTC
Last updated: 08/26/2026, 22:52:11 UTC
Views: 81
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