{"id":"CVE-2026-55944","title":"Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Code Execution Vulnerability","summary":"Deserialization of untrusted data in Microsoft Dynamics NAV allows an unauthorized attacker to execute code over a network.","severity":"critical","cvss":9.8,"cvssVector":"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","cvssSource":"cna","cwe":["CWE-502"],"vendor":"Microsoft","product":"Microsoft Dynamics NAV 2018","affected":["dynamics_nav_2018 >= 1.0 < 11.0.50704.0"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-07-14T18:01:05.898620Z"},"exploitAvailable":true,"published":"2026-07-14","updated":"2026-10-28","sourceUpdated":"2026-10-28T20:05:52.466Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55944","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55944","label":"Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Code Execution Vulnerability"}],"tags":["cve.org","exploit-available"],"epss":0.01532,"epssPercentile":0.74723,"exploits":{"github":1,"githubRepos":["https://github.com/kipkorirchirchir800-hash/Cve-2026-55944"],"checkedAt":"2026-10-30T04:52:34.396Z"},"ingestedAt":"2026-09-08T17:06:31.907Z","slug":"CVE-2026-55944","body":"## Overview\n\nDeserialization of untrusted data in Microsoft Dynamics NAV allows an unauthorized attacker to execute code over a network.\n\n## Affected\n\n- `dynamics_nav_2018 >= 1.0 < 11.0.50704.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.3,"exploitation":12,"ransomware":0},"changes":[{"seq":230219,"id":"CVE-2026-55944","ts":1793127874761,"field":"exploit_available","old":"false","new":"true"}]}