CVE-2018-7789

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to remotely reboot Modicon M221 using crafted programing protocol frames.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.49%
Vendor Advisory schneider-electric.com
Affected: Schneider Electric SE Modicon M221, all references, all versions prior to firmware V1.6.2.0
Published at:
Updated at:

References

Link Tags
https://ics-cert.us-cert.gov/advisories/ICSA-18-240-02 us government resource third party advisory mitigation
https://www.schneider-electric.com/en/download/document/SEVD-2018-233-01/ mitigation vendor advisory
http://www.securityfocus.com/bid/105171 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-7789?
CVE-2018-7789 has been scored as a high severity vulnerability.
How to fix CVE-2018-7789?
To fix CVE-2018-7789, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-7789 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-7789 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-7789?
CVE-2018-7789 affects Schneider Electric SE Modicon M221, all references, all versions prior to firmware V1.6.2.0.
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