Siemens SIMATIC Logon prior to V1.5 SP3 Update 2 could allow an attacker with knowledge of a valid user name, and physical or network access to the affected system, to bypass the application-level authentication.
Exploitability
AV:NAC:HPR:NUI:NScope
S:CImpact
C:HI:HA:H9/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HOther