CVE-2021-27395
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
SIMATIC Process Historian 2013 and earlier
- Vendor
- Siemens
- Product
- SIMATIC Process Historian 2013 and earlier
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| All versions | affected | Unavailable | Unavailable | Unavailable | None listed |
SIMATIC Process Historian 2014
- Vendor
- Siemens
- Product
- SIMATIC Process Historian 2014
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| All versions < SP3 Update 6 | affected | Unavailable | Unavailable | Unavailable | None listed |
SIMATIC Process Historian 2019
- Vendor
- Siemens
- Product
- SIMATIC Process Historian 2019
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| All versions | affected | Unavailable | Unavailable | Unavailable | None listed |
SIMATIC Process Historian 2020
- Vendor
- Siemens
- Product
- SIMATIC Process Historian 2020
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| All versions | affected | Unavailable | Unavailable | Unavailable | None listed |