CVE-2026-70264: Windows Defender 0 to before 1.1.26090.9

Affected technology

Windows Defender · 0 to before 1.1.26090.9
Microsoft

Description’s affected range: before file access ('link following') in Microsoft Defender

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

An authorized attacker can disclose information locally. Vendor/CNA’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality impact as high; integrity and availability impact as none.