CVE-2026-50657 | BDVDB-2026-348186 Detail

MicrosoftMicrosoft 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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: local.

Weaknesses#

CWE-359 Exposure of Private Personal Information to an Unauthorized Actor

References#

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50657

Exploit#

No public exploit known

History#

Version 12026-07-14Record published in the CVE List.
Version 22026-11-01Most recent update recorded in the CVE List.

Published

Published: 2026-07-14
Last modified: 2026-11-01

Vendor information

Vendor: Microsoft
Product: Microsoft Defender for Endpoint for Mac

All Microsoft vulnerabilities

Score

4.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 34.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 101.0.0 and < 101.26042.0020
Fixed
101.26042.0020

Scoring System

CVSS v4.0

Not available

CVSS v3.1

4.7 Medium

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).