PT-2026-58588 · Microsoft · Dynamics Nav 2018

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-55944

NVD

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Deserialization of untrusted data in Microsoft Dynamics NAV allows an unauthorized attacker to execute code over a network.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2026-55944

Affected Products

Dynamics Nav 2018

References · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55944 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-55944 · Security Note