CVEvulnerability

CVE-2021-31889

9.1 CRITICAL Published 2021-11-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-11-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.0 ([email protected])
6.4 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:P
Weaknesses
CWE-191

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). Malformed TCP packets with a corrupted SACK option leads to Information Leaks and Denial-of-Service conditions. (FSMD-2021-0015)

Affected configurations

• siemens capital vstar • siemens nucleus net • siemens nucleus readystart v3 (< 2017.02.3) • siemens nucleus source code • siemens apogee modular building controller firmware • siemens apogee modular equiment controller firmware • siemens apogee pxc compact firmware • siemens apogee pxc modular firmware • siemens talon tc compact firmware • siemens talon tc modular firmware

Related

Weakness · CWE (1)

  • CWE-191 Integer Underflow (Wrap or Wraparound) weakness

References