What’s Vulnerable › Vulnerabilities
CVE-2026-70264: Microsoft Defender Information Disclosure Vulnerability
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-13 · updated 2026-10-31
- Weakness: CWE-59
Description
Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to disclose information locally.
Affected products
- Microsoft Windows Defender: before 1.1.26090.9 — fixed in 1.1.26090.9
How to fix
Upgrade to a fixed version: Microsoft Windows Defender 1.1.26090.9. Check the vendor advisory for mitigations.
References
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