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TI-2026-31042 Aliases CVE-2026-42833GHSA-wq97-r6xw-c5c9

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Priority MEDIUM 43CWE-250Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00748 55th percentileScored 2026-11-07
Fix Fixed Microsoft: 1 update

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Dynamics 365 (on-premises) version 9.19.0 to before 9.1.45.119.1.45.11Patch availableCNA
  • Microsoft Dynamics 365 (on-premises) version 9.1 VendorMicrosoft Affected 9.0 to before 9.1.45.11 Fixed in 9.1.45.11 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:dynamics_365:*:*:*:*:on-premises:*:*:*9.1 to before 9.1.45.11VulnerableMicrosoft
  • cpe:2.3:a:microsoft:dynamics_365:*:*:*:*:on-premises:*:*:* Versions 9.1 to before 9.1.45.11 Vulnerable ·Microsoft

Remediation

Microsoft 1 update

  • KB5078943
    Security Update
    • Microsoft Dynamics 365 (on-premises) version 9.0 9.1.0044.0015
    • Microsoft Dynamics 365 (on-premises) version 9.1 9.1.45.11

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42833
  2. 2026-10-03 Alias added: GHSA-wq97-r6xw-c5c9

References

Patch 1

  • TI-2018-06256 Improper output encoding in Microsoft Dynamics 365 CVSS 3.0HIGH 8.8
  • TI-2020-12866 Microsoft Dynamics 365 (on-premises) Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-31102 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.9
  • TI-2024-25464 Microsoft Dynamics 365 Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-15512 Microsoft Dynamics CRM (on-premises) Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-35158 Dynamics 365 Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.9
See all 102 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences