# CVE-2026-50657: Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability

CVE-2026-50657 is fixed in Microsoft Defender on 1 platform by Microsoft Defender 101.26042.0020 (version 101.26042.0020), released June 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-50657
- Priority: Routine
- CVSS: 5.5 (Important)
- EPSS: 0.0040
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jul 14, 2026
- Weakness: Exposure of Private Personal Information to an Unauthorized Actor
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50657

## Description

<p>Exposure of private personal information to an unauthorized actor in Microsoft Defender allows an authorized attacker to disclose information locally.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| macOS | Microsoft Defender | 101.26042.0020 | [Microsoft Defender 101.26042.0020](https://patchblox.com/security/data/fix/macos/com.microsoft.wdav-101.26042.0020.md) | Jun 12, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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