Vulnerability details
CVE-2026-55944
Microsoft Dynamics NAV
Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Code Execution Vulnerability
CVSS 3.1
9.8Critical
Official description
Deserialization of untrusted data in Microsoft Dynamics NAV allows an unauthorized attacker to execute code over a network.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | Microsoft Dynamics NAV 2018 | 1.0 ≤ v < 11.0.50704.0 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55944 vendor-advisorypatch
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Details
- Published
- 2026-07-14
- Last updated
- 2026-11-01
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
1.53%
Probability of exploitation in 30 days
74.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-502Deserialization of Untrusted Data