CVE-2021-27395

2021-10-1209:49:20

CWE-306

siemens

www.cve.org

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.1%

JSON

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). An interface in the software that is used for critical functionalities lacks authentication, which could allow a malicious user to maliciously insert, modify or delete data.

CNA Affected

[
  {
    "product": "SIMATIC Process Historian 2013 and earlier",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "SIMATIC Process Historian 2014",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < SP3 Update 6"
      }
    ]
  },
  {
    "product": "SIMATIC Process Historian 2019",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "SIMATIC Process Historian 2020",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-766247.pdf