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CVE-2021-31889

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 Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0). Malformed TCP packets with a corrupted SACK option leads to Information Leaks and Denial-of-Service conditions. (FSMD-2021-0015)

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.

Capital Embedded AR Classic 431-422

Vendor
Siemens
Product
Capital Embedded AR Classic 431-422
Platforms
Unknown
Default status
unknown
Capital Embedded AR Classic 431-422 · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
0affectedcustom*UnavailableNone listed

Capital Embedded AR Classic R20-11

Vendor
Siemens
Product
Capital Embedded AR Classic R20-11
Platforms
Unknown
Default status
unknown
Capital Embedded AR Classic R20-11 · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
0affectedcustomV2303UnavailableNone listed

PLUSCONTROL 1st Gen

Vendor
Siemens
Product
PLUSCONTROL 1st Gen
Platforms
Unknown
Default status
unknown
PLUSCONTROL 1st Gen · 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

SIMOTICS CONNECT 400

Vendor
Siemens
Product
SIMOTICS CONNECT 400
Platforms
Unknown
Default status
unknown
SIMOTICS CONNECT 400 · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V0.5.0.0affectedUnavailableUnavailableUnavailableNone listed