CVE-2026-42833

Name: CVE-2026-42833
Creator: NVD / NIST
Published: 2026-05-12T18:17:25.933+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2026-42833 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.75%

50.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-250

Affected Software

Vendor	Product	Versions
Microsoft	Dynamics 365	>= 9.1, < 9.1.45.11

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42833Vendor Advisory

Timeline

Published: May 12, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-42833?

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

How severe is CVE-2026-42833?

CVE-2026-42833 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2026-42833?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-42833?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST