CVE-2020-6986

In all versions of Omron PLC CJ Series, an attacker can send a series of specific data packets within a short period, causing a service error on the PLC Ethernet module, which in turn causes a PLC service denied result.

Score

CVSS 3.1 7.5 High

Status

Modified - ics-cert@hq.dhs.gov

Published

2020-03-05

Last modified

2026-06-02

Weaknesses

CWE-400

Affected products

• Plc Cj1 Firmware (Omron)
• Plc Cj2 Firmware (Omron)

References

• https://www.us-cert.gov/ics/advisories/icsa-20-063-03