A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a Denial of Service of the RTU when receiving a specially crafted request over Modbus, and the RTU is configured as a Modbus server. Affected Products: SCADAPack 312E, 313E, 314E, 330E, 333E, 334E, 337E, 350E and 357E RTUs with firmware V8.18.1 and prior

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-22816
• https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-01