Microsoft Dynamics Nav 2018 vulnerabilities

4 CVEs affecting Microsoft Dynamics Nav 2018, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-105728, published 2026-10-13.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-100214, published 2026-10-13. High severity, CVSS 8.8. EPSS: 1.8% chance of exploitation in the next 30 days. Deserialization of untrusted data in Dynamics Business Central allows an authorized attacker to execute code over a network.
• CVE-2026-105727, published 2026-10-13. High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days. Improper limitation of a pathname to a restricted directory ('path traversal') in Dynamics Business Central allows an authorized attacker to elevate privileges over a network.
• CVE-2026-102226, published 2026-10-13. High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days. Improper limitation of a pathname to a restricted directory ('path traversal') in Dynamics Business Central allows an authorized attacker to elevate privileges over a network.
• CVE-2026-105728, published 2026-10-13. High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days. Improper authentication in Dynamics Business Central allows an unauthorized attacker to disclose information over a network.