CVE-2026-54123

MEDIUM CVSS 3.1: 5.5 EPSS 0.45%
Updated Aug 17, 2026
Microsoft
Parameter Value
CVSS 5.5 (MEDIUM)
Affected Versions 101.0.0 — 101.26042.0020
Fixed In 101.26042.0020
Type CWE-200 (Information Exposure)
Vendor Microsoft
Public PoC No

Exposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Microsoft Defender_For_Endpoint
cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:macos:*:*
101.0.0 101.26042.0020