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TI-2026-73258 Aliases CVE-2026-100214GHSA-5f72-8jgj-6pr6

Deserialization flaw in Microsoft Dynamics 365 Business Central

Priority MEDIUM 44CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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. Impact type from CWE-502.

Summary

Microsoft Dynamics NAV 2017 from 1.0 before 30713 and Microsoft Dynamics NAV 2018 from 1.0 before 11.0.50736.0 are affected. Deserialization of untrusted data (CWE-502) in Dynamics Business Central lets an authorized attacker execute code over a network.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Deserialization of untrusted data in Dynamics Business Central allows an authorized attacker to execute code over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02072 81st percentileScored 2026-11-07
Fix Fixed Microsoft Dynamics NAV 2017 (Microsoft): 30713Microsoft Dynamics NAV 2018 (Microsoft): 11.0.50736.0

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 NAV 20171.0 to before 3071330713Patch availableCNA
MicrosoftMicrosoft Dynamics NAV 20181.0 to before 11.0.50736.011.0.50736.0Patch availableCNA
  • Microsoft Dynamics NAV 2017 VendorMicrosoft Affected 1.0 to before 30713 Fixed in 30713 Patch available CNA
  • Microsoft Dynamics NAV 2018 VendorMicrosoft Affected 1.0 to before 11.0.50736.0 Fixed in 11.0.50736.0 Patch available CNA

Remediation

Microsoft Dynamics NAV 2017 is fixed in version 30713 and Microsoft Dynamics NAV 2018 is fixed in version 11.0.50736.0.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Microsoft Dynamics NAV 2017 (Microsoft) Fixed in 30713
  • Fix · CNA Microsoft Dynamics NAV 2018 (Microsoft) Fixed in 11.0.50736.0

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-100214
  2. 2026-10-13 Alias added: GHSA-5f72-8jgj-6pr6
  3. 2026-10-14 CISA SSVC decision points changed
  4. 2026-10-14 Priority changed: MEDIUM → LOW
  5. 2026-10-14 Priority changed: LOW → MEDIUM

References

Patch 1

  • TI-2026-42212 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-37256 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-16982 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-36863 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-33671 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
See all 18045 →

Sources

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