CVE-2026-54123

Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability

Published Aug 11, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
Exposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Exposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally.
Title Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft defender For Endpoint
Weaknesses CWE-200
CPEs cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:macos:*:*
Vendors & Products Microsoft
Microsoft defender For Endpoint
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 9:58 PM
Reserved
Jun 11, 2026, 8:33 PM
Status
Analyzed
Published
Aug 11, 2026, 5:18 PM
Modified
Oct 24, 2026, 4:10 PM