CVE-2026-105727: Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability

Overview

Severity
High (CVSS 8.8)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Elevation of Privilege
Exploit Status
Not Exploited
Exploitation Likelihood
Unlikely
Patch Tuesday
2026-Oct
Released
2026-10-13

Description

Improper limitation of a pathname to a restricted directory ('path traversal') in Dynamics Business Central allows an authorized attacker to elevate privileges over a network.

FAQ

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain the privileges of the user account or service account running the affected process. How could an attacker exploit this vulnerability? An authenticated attacker with low privileges could send specially crafted requests to write files to locations accessible to the affected web application. Successful exploitation could allow the attacker to gain the privileges of the application-pool identity or compromise other users’ sessions.

Affected Products (1)

Microsoft Dynamics

  • Microsoft Dynamics NAV 2018 on Windows Server 2012

Security Updates (1)

Acknowledgments

Nolan Hayes

Revision History

  • 2026-10-13: Information published.