Important EPSS 0.03454 2019-08 archive

Executive Summary

An elevation of privilege vulnerability exists in Dynamics On-Premise v9. An attacker who successfully exploited the vulnerability could leverage a customizer privilege within Dynamics to gain control of the Web Role hosting the Dynamics installation. To exploit this vulnerability, an attacker needs to have credentials for a user that has permission to author customized business rules in Dynamics, and persist XAML script in a way that causes it to be interpreted as code. The update addresses the vulnerability by restricting XAML activities to a whitelisted set.

Overview

Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Elevation of Privilege
Released Aug 13 2019
Last Updated Aug 13 2019
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.03454 — 0.87486 percentile

EPSS Score

0.03454
probability of exploitation in the next 30 days
0.87486 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

1 affected product
Product KB Article Severity Impact Restart Required
Microsoft Dynamics 365 (on-premises) version 9.0 4508724 (Security Update) Important Elevation of Privilege Maybe

Patches

1 patch
Article Type Restart
4508724 Security Update Maybe

Known Exploits

Acknowledgments

@irsdl ) of NCC Group