Vulnerability in Microsoft Defender For Endpoint
CVE-2026-50657
Exposure of private personal information to an unauthorized actor in Microsoft Defender allows an authorized attacker to disclose information locally.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Microsoft Defender For Endpoint
- Microsoft Defender For Endpoint Mac — versions 101.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-50657?
- CVE-2026-50657 is a medium-severity vulnerability in Microsoft Defender For Endpoint, classified under Exposure of Private Personal Information to an Unauthorized Actor. CVSS score: 4.7/10. Published 2026-07-14.
- How severe is CVE-2026-50657?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2026-50657 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.