CVE-2026-56178

Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56178	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:macos:*:*

History

24 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Una condición de carrera de tiempo de verificación a tiempo de uso (TOCTOU) en Microsoft Defender para Endpoint permite a un atacante autorizado elevar privilegios localmente.

Information

Published : 2026-07-14 18:18

Updated : 2026-11-03 23:17

NVD link : CVE-2026-56178

Mitre link : CVE-2026-56178

CVE.ORG link : CVE-2026-56178

JSON object : View

Products Affected

microsoft

defender_for_endpoint

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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