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CVE-2021-31893

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 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.

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 V9.0

Vendor
Siemens
Product
SIMATIC PCS 7 V9.0
Platforms
Unknown
Default status
Unknown
SIMATIC PCS 7 V9.0 · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V9.0 SP3affectedUnavailableUnavailableUnavailableNone 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 < V9.2affectedUnavailableUnavailableUnavailableNone 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 < V5.6 SP2 HF3affectedUnavailableUnavailableUnavailableNone 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 HF2affectedUnavailableUnavailableUnavailableNone listed