Resource exhaustion in Mitsubishielectric R12ccpu-V
CVE-2021-20600
Uncontrolled resource consumption in Mitsubishi Electric MELSEC iQ-R series C Controller Module R12CCPU-V Firmware Versions "16" and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending a large number of packets in a short time while the module starting up. System reset is required for recovery.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.022 (81.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mitsubishielectric R12ccpu-v
- Mitsubishielectric R12ccpu-v_firmware
- N/a Mitsubishi Electric Melsec Iq-r Series C Controller Module R12ccpu-v — versions Mitsubishi Electric MELSEC iQ-R series C Controller Module R12CCPU-V Firmware Versions "16" and prior
Weakness classification (CWE)
References
- Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (x_refsource_MISC, Vendor Advisory)
- Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (Third Party Advisory, x_refsource_MISC)
- Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (US Government Resource, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-20600?
- CVE-2021-20600 is a medium-severity vulnerability in Mitsubishielectric R12ccpu-V, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2021-10-08.
- How severe is CVE-2021-20600?
- Medium severity. CVSS v3 base score is 5.9 out of 10.