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.

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 halting, physical access to the PLC is required in order to restore production, and the device state is lost. This is related to R04CPU, RJ71GF11-T2, R04CPU, and RJ71GF11-T2.

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

EPSS: 0.021 (79.9th 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

yossireuven/Publications

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.