CVSS v3
7.5
HIGH
EPSS Score
12.9%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading memory blocks with an invalid data size or with an invalid data offset in the controller over Modbus.
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading memory blocks with an invalid data size or with an invalid data offset in the controller over Modbus.
Active exploitation of CVE-2018-7843 has not been confirmed. The EPSS score is 12.9%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2018-7843 has a CVSS v3 base score of 7.5 (HIGH severity).
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Ranked by exploit probability (EPSS).