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LOW · 3.9

CVE-2021-22746

Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex Model 3009 MP installed on Tricon V11.3.x systems that could cause module reset when TCM receives malformed TriSta...

Vulnerability Description

Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex Model 3009 MP 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. This CVE ID is unique from CVE-2021-22742, CVE-2021-22744, CVE-2021-22745, and CVE-2021-22747.

CVSS Score

3.9

LOW

CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
Schneider-ElectricTriconex Model 3009 Mp Firmware>= 11.3.0, < 11.8.0
Schneider-ElectricTriconex Model 3009 Mp-
Schneider-ElectricTcm 4351B Firmware>= 11.3.0, < 11.5.1
Schneider-ElectricTcm 4351B-

Related Weaknesses (CWE)

CWE-754

References

FAQ

What is CVE-2021-22746?

CVE-2021-22746 is a vulnerability with a CVSS score of 3.9 (LOW). Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex Model 3009 MP installed on Tricon V11.3.x systems that could cause module reset when TCM receives malformed TriSta...

How severe is CVE-2021-22746?

CVE-2021-22746 has been rated LOW with a CVSS base score of 3.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-22746?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Triconex Model 3009 Mp Firmware, Schneider-Electric Triconex Model 3009 Mp, Schneider-Electric Tcm 4351B Firmware, Schneider-Electric Tcm 4351B.