Resource exhaustion in Omron Plc Cj1
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.016 (72.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Omron Plc_cj1
- Omron Plc_cj1_firmware
- Omron Plc_cj2
- Omron Plc_cj2_firmware
- N/a Omron Plc Cj Series — versions all versions
Weakness classification (CWE)
References
- ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC, Mitigation)
Frequently asked questions
- What is CVE-2020-6986?
- CVE-2020-6986 is a high-severity vulnerability in Omron Plc Cj1, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2020-03-05.
- How severe is CVE-2020-6986?
- High severity. CVSS v3 base score is 7.5 out of 10.