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…
Does this matter?
Lower severity and a low EPSS score (2.38%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.38% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- mitsubishielectric/r12ccpu-v firmware
- Source
- Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
References
- https://jvn.jp/vu/JVNVU94914666/index.htmlThird Party Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-280-04Third Party Advisory, US Government Resource
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-015_en.pdfVendor Advisory
- https://jvn.jp/vu/JVNVU94914666/index.htmlThird Party Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-280-04Third Party Advisory, US Government Resource
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-015_en.pdfVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.