Low severity3.9NVD Advisory· Published May 26, 2021· Updated Jun 17, 2026
CVE-2021-22743
CVE-2021-22743
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.
Affected products
5cpe:2.3:o:schneider-electric:tcm_4351b_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:schneider-electric:tcm_4351b_firmware:*:*:*:*:*:*:*:*range: >=11.3.0,<11.5.1
- cpe:2.3:o:schneider-electric:tcm_4351b_firmware:11.7.0:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:triconex_model_3009_mp_firmware:*:*:*:*:*:*:*:*Range: >=11.3.0,<11.8.0
- Triconex/TCM 4351Bdescription
- Range: Tricon V11.3.x
Patches
Vulnerability mechanics
References
1- download.schneider-electric.com/filesnvdVendor Advisory
News mentions
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