Important CVSS 5.5 EPSS 0.00221 2026-04 archive

Executive Summary

Improper access control in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information locally.

Overview

5.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Exploitation Unlikely
MS Exploit Likelihood
Category Information Disclosure
Released Apr 14 2026
Last Updated Apr 14 2026
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00221 — 0.1244 percentile
NVD CVSS 5.5 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.8

EPSS Score

0.00221
probability of exploitation in the next 30 days
0.1244 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

1 affected product
Product KB Article Severity Impact Restart Required
Microsoft Dynamics 365 (on-premises) version 9.0 5078943 (Security Update) Important Information Disclosure Maybe

Patches

1 patch
Article Type Restart
5078943 Security Update Maybe

Known Exploits

Acknowledgments

41ae55e9310ff27fa6f26af4727e5590, Hoangnx and hoangha