Critical severity9.1NVD Advisory· Published May 12, 2026· Updated Jun 1, 2026
CVE-2026-42833
CVE-2026-42833
Description
Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.
Affected products
2cpe:2.3:a:microsoft:dynamics_365:*:*:*:*:on-premises:*:*:*+ 1 more
- cpe:2.3:a:microsoft:dynamics_365:*:*:*:*:on-premises:*:*:*range: >=9.1,<9.1.45.11
- (no CPE)
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42833nvdVendor Advisory
News mentions
3- Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE FlawsThe Hacker News · May 13, 2026
- Patch Tuesday - May 2026Rapid7 Blog · May 13, 2026
- Microsoft May 2026 Patch Tuesday fixes 120 flaws, no zero-daysBleepingComputer · May 12, 2026