Auth bypass in Siemens Simatic_process_historian_2013
CVE-2021-27395
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 (…
Vulnerability class: Broken Authentication
EPSS: 0.008 (51.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Siemens Simatic_process_historian_2013
- Siemens Simatic Process Historian 2013 And Earlier — versions All versions
- Siemens Simatic Process Historian 2014 — versions All versions < SP3 Update 6
- Siemens Simatic_process_historian_2014
- Siemens Simatic Process Historian 2019 — versions All versions
- Siemens Simatic_process_historian_2019
- Siemens Simatic Process Historian 2020 — versions All versions
- Siemens Simatic_process_historian_2020
Weakness classification (CWE)
References
- productcert@siemens.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-27395?
- CVE-2021-27395 is a high-severity vulnerability in Siemens Simatic_process_historian_2013, classified under Missing Authentication for Critical Function. CVSS score: 8.1/10. Published 2021-10-12.
- How severe is CVE-2021-27395?
- High severity. CVSS v3 base score is 8.1 out of 10.