Vulnerabilities > Siemens > Simatic Process Historian 2020 > Medium
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2021-10-12 | CVE-2021-27395 | Missing Authentication for Critical Function vulnerability in Siemens products A vulnerability has been identified in SIMATIC Process Historian 2013 and earlier (All versions), SIMATIC Process Historian 2014 (All versions < SP3 Update 6), SIMATIC Process Historian 2019 (All versions), SIMATIC Process Historian 2020 (All versions). | 5.5 |