VulnerabilityModified
CVE-2021-22743
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…
LOW 3.9EPSS 0.22%
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 3.9 LOWCVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- schneider-electric/triconex model 3009 mp firmware · schneider-electric/tcm 4351b firmware
- Source
- cybersecurity@se.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.