CVE-2026-42833

CRITICAL

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Title source: cna
STIX 2.1

Description

Execution with unnecessary privileges in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42833

Scores

CVSS v3 9.1
EPSS 0.0010
EPSS Percentile 26.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-250
Status published
Products (3)
microsoft/dynamics_365 9.1 - 9.1.45.11
Microsoft/Microsoft Dynamics 365 (on-premises) version 9.1 9.0 - 9.1.44.15
Microsoft/Microsoft Dynamics 365 (on-premises) version 9.1 9.0 - 9.1.45.11
Published May 12, 2026
Tracked Since May 12, 2026