cveboard RSS feed

CVE-2021-31894

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2021
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions < V9.1 SP2), SIMATIC PDM (All versions < V9.2 SP2), SIMATIC STEP 7 V5.X (All versions < V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 SP2 HF1). A directory containing metafiles relevant to devices' configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software.

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 PCS 7 V8.2 and earlier

Vendor
Siemens
Product
SIMATIC PCS 7 V8.2 and earlier
Platforms
Unknown
Default status
Unknown
SIMATIC PCS 7 V8.2 and earlier · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versionsaffectedUnavailableUnavailableUnavailableNone listed

SIMATIC PCS 7 V9.X

Vendor
Siemens
Product
SIMATIC PCS 7 V9.X
Platforms
Unknown
Default status
Unknown
SIMATIC PCS 7 V9.X · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V9.1 SP2affectedUnavailableUnavailableUnavailableNone listed

SIMATIC PDM

Vendor
Siemens
Product
SIMATIC PDM
Platforms
Unknown
Default status
Unknown
SIMATIC PDM · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V9.2 SP2affectedUnavailableUnavailableUnavailableNone listed

SIMATIC STEP 7 V5.X

Vendor
Siemens
Product
SIMATIC STEP 7 V5.X
Platforms
Unknown
Default status
Unknown
SIMATIC STEP 7 V5.X · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V5.7affectedUnavailableUnavailableUnavailableNone listed

SINAMICS STARTER (containing STEP 7 OEM version)

Vendor
Siemens
Product
SINAMICS STARTER (containing STEP 7 OEM version)
Platforms
Unknown
Default status
Unknown
SINAMICS STARTER (containing STEP 7 OEM version) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V5.4 SP2 HF1affectedUnavailableUnavailableUnavailableNone listed