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CVE-2021-37204

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 Drive Controller family (All versions < V2.9.2), SIMATIC Drive Controller family (All versions >= V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V21.9 < V21.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions >= V4.5.0 < V4.5.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.9.2 < V2.9.4), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-1500 Software Controller (All versions >= V21.9 < V21.9.4), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SIMATIC S7-PLCSIM Advanced (All versions >= V4.0 < V4.0 SP1), SIPLUS TIM 1531 IRC (All versions < V2.3.6), TIM 1531 IRC (All versions < V2.3.6). An unauthenticated attacker could cause a denial-of-service condition in a PLC when sending specially prepared packet over port 102/tcp. A restart of the affected device is needed to restore normal operations.

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 Drive Controller family

Vendor
Siemens
Product
SIMATIC Drive Controller family
Platforms
Unknown
Default status
unknown
SIMATIC Drive Controller family · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V2.9.2affectedUnavailableUnavailableUnavailableNone listed

SIMATIC Drive Controller family

Vendor
Siemens
Product
SIMATIC Drive Controller family
Platforms
Unknown
Default status
unknown
SIMATIC Drive Controller family · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V2.9.2 < V2.9.4affectedUnavailableUnavailableUnavailableNone listed

SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)

Vendor
Siemens
Product
SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)
Platforms
Unknown
Default status
unknown
SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) · 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 ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)

Vendor
Siemens
Product
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
Platforms
Unknown
Default status
unknown
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V21.9affectedUnavailableUnavailableUnavailableNone listed

SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)

Vendor
Siemens
Product
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
Platforms
Unknown
Default status
unknown
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V21.9 < V21.9.4affectedUnavailableUnavailableUnavailableNone listed

SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux

Vendor
Siemens
Product
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux
Platforms
Unknown
Default status
unknown
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux · 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 S7-1200 CPU family (incl. SIPLUS variants)

Vendor
Siemens
Product
SIMATIC S7-1200 CPU family (incl. SIPLUS variants)
Platforms
Unknown
Default status
unknown
SIMATIC S7-1200 CPU family (incl. SIPLUS variants) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V4.5.0affectedUnavailableUnavailableUnavailableNone listed

SIMATIC S7-1200 CPU family (incl. SIPLUS variants)

Vendor
Siemens
Product
SIMATIC S7-1200 CPU family (incl. SIPLUS variants)
Platforms
Unknown
Default status
unknown
SIMATIC S7-1200 CPU family (incl. SIPLUS variants) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V4.5.0 < V4.5.2affectedUnavailableUnavailableUnavailableNone listed

SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)

Vendor
Siemens
Product
SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)
Platforms
Unknown
Default status
unknown
SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V2.9.2affectedUnavailableUnavailableUnavailableNone listed

SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)

Vendor
Siemens
Product
SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)
Platforms
Unknown
Default status
unknown
SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V2.9.2 < V2.9.4affectedUnavailableUnavailableUnavailableNone listed

SIMATIC S7-1500 Software Controller

Vendor
Siemens
Product
SIMATIC S7-1500 Software Controller
Platforms
Unknown
Default status
unknown
SIMATIC S7-1500 Software Controller · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V21.9affectedUnavailableUnavailableUnavailableNone listed

SIMATIC S7-1500 Software Controller

Vendor
Siemens
Product
SIMATIC S7-1500 Software Controller
Platforms
Unknown
Default status
unknown
SIMATIC S7-1500 Software Controller · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V21.9 < V21.9.4affectedUnavailableUnavailableUnavailableNone listed

SIMATIC S7-PLCSIM Advanced

Vendor
Siemens
Product
SIMATIC S7-PLCSIM Advanced
Platforms
Unknown
Default status
unknown
SIMATIC S7-PLCSIM Advanced · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V4.0affectedUnavailableUnavailableUnavailableNone listed

SIMATIC S7-PLCSIM Advanced

Vendor
Siemens
Product
SIMATIC S7-PLCSIM Advanced
Platforms
Unknown
Default status
unknown
SIMATIC S7-PLCSIM Advanced · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V4.0 < V4.0 SP1affectedUnavailableUnavailableUnavailableNone listed

SIPLUS TIM 1531 IRC

Vendor
Siemens
Product
SIPLUS TIM 1531 IRC
Platforms
Unknown
Default status
unknown
SIPLUS TIM 1531 IRC · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V2.3.6affectedUnavailableUnavailableUnavailableNone listed

TIM 1531 IRC

Vendor
Siemens
Product
TIM 1531 IRC
Platforms
Unknown
Default status
unknown
TIM 1531 IRC · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V2.3.6affectedUnavailableUnavailableUnavailableNone listed