CVE-2021-22743

low

Description

Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex TCM 4351B installed on Tricon V11.3.x systems that could cause module reset when TCM receives malformed TriStation packets while the write-protect keyswitch is in the program position.

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-03

Details

Source: Mitre, NVD

Published: 2021-05-26

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 3.9

Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Severity: Low

EPSS

EPSS: 0.00055