CVSS v3
7.5
HIGH
EPSS Score
12.9 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2019-05-22
Frequently asked questions
What is CVE-2018-7843?
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.
Is CVE-2018-7843 actively exploited?
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.
What is the CVSS score for CVE-2018-7843?
CVE-2018-7843 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2018-7843 affecting your environment?
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