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CVE-2026-26153

HIGH CVSS 3.1: 7.8
Updated Apr 17, 2026
Out-of-bounds
Parameter Value
CVSS 7.8 (HIGH)
Type CWE-125 (Out-of-bounds Read)
Vendor Out-of-bounds
Public PoC No

Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges 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
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)