CVE-2021-31890

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CVSS 3.1

9.1 critical

EPSS

2%p82

Published

Nov 9, 2021 (Nov 9, 2021)

Modified

Jun 17, 2026

Description

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), SIMOTICS CONNECT 400 (All versions < V1.0.0.0). The total length of an TCP payload (set in the IP header) is unchecked. This may lead to various side effects, including Information Leak and Denial-of-Service conditions, depending on the network buffer organization in memory. (FSMD-2021-0017)

Vendors: siemens
Products: capital vstar, nucleus net, nucleus readystart v3, nucleus readystart v4, nucleus source code, apogee modular building controller firmware, apogee modular equiment controller firmware, apogee pxc compact firmware, apogee pxc modular firmware, talon tc compact firmware, talon tc modular firmware
Weakness: CWE-240
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (2.2%)

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