Vulnerability · Published Jun 9, 2026 · Assigned by microsoft
CVE-2026-40371Microsoft Dynamics 365 (on-premises) Elevation of Privilege Vulnerability
High 8.8
In plain English
A high-severity security flaw in Microsoft Dynamics 365 (on-premises) version 9.1 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 49.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper handling of insufficient permissions or privileges in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to elevate privileges over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Dynamics 365 (on-premises) version 9.1 | 9.0 – before 9.1.0045.0011 |
Weakness: CWE-280 · 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
References
- Microsoft Dynamics 365 (on-premises) Elevation of Privilege Vulnerability vendor-advisory, patch