What’s Vulnerable › Vulnerabilities

CVE-2026-105725: Windows Security App Elevation of Privilege Vulnerability

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% 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-416

Description

Use after free in Windows Security App allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft Windows Security App: from 1000.0.0.0 before 1000.27840.1000.0 — fixed in 1000.27840.1000.0

How to fix

Upgrade to a fixed version: Microsoft Windows Security App 1000.27840.1000.0. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105725

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