Resource exhaustion in Mitsubishielectric R00cpu

CVE-2020-16850

Mitsubishi MELSEC iQ-R Series PLCs with firmware 49 allow an unauthenticated attacker to halt the industrial process by sending a crafted packet over the network. This denial of service attack exposes Improper Input Validation. After halti…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.021 (79.5th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-16850?
CVE-2020-16850 is a high-severity vulnerability in Mitsubishielectric R00cpu, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2020-11-30.
How severe is CVE-2020-16850?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-16850 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.