PT-2026-112017 · Microsoft · .Net Framework+1

CVE-2026-108398

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Published

2026-10-13

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Updated

2026-10-14

CVSS v3.1

8.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Microsoft .NET Framework versions 3.5 through 4.8.1
Description An untrusted search path issue exists that allows an authenticated local attacker to bypass Windows Defender Application Control (WDAC) restrictions. The attack involves using a specially crafted .NET assembly registered for loading by a protected process, which could lead to the execution of unauthorized code within that process.
Recommendations Deploy the October 13 security updates for Microsoft .NET Framework versions 3.5 through 4.8.1. Maintain WDAC enforcement and restrict local privileges.

Fix

Untrusted Search Path

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Weakness Enumeration

Related Identifiers

CVE-2026-108398

Affected Products

.Net Framework
Windows Defender Application Control