Index / Exploitation for Priv-Esc / Microsoft
Bypass Record

Exploitation for Priv-Esc × Microsoft Defender

A publicly-reported instance of Exploitation for Priv-Esc bypassing Microsoft Defender, recorded with its original source. Factual record; no assessment of any specific deployment.

Product
Microsoft Defender
Technique
Exploitation for Priv-Esc
MITRE ATT&CK
T1068
Confidence
High
Severity
High
Status
poc
Disclosed
2026-09-09
Config / version noted
Not stated

Provenance

Reported as

unpatched vulnerability in Microsoft Defender that enables a local attacker to read arbitrary files with SYSTEM privileges

Mechanism

The vulnerability exploits a flaw in Microsoft Defender's file scanning mechanism, allowing a local attacker to trigger a race condition or improper file handling that grants read access to arbitrary files in the SYSTEM context.

Detection & mitigation

Monitor for unusual file access patterns by MsMpEng.exe (Defender's engine) to sensitive files. Apply vendor patches when available and restrict local user privileges.

Exploitation for Priv-Esc has also been recorded against

AppleAtlassianAvastBitdefenderBroadcom (Symantec)Comodo SecurityConnectWiseCrowdStrikeElasticESETF5Fortinet

This is a record of a publicly-reported event, not an assessment of any specific organization's deployment. Detection and mitigation notes are drawn from the cited source. Where the source is silent, fields are omitted.