CVE-2020-27279

Name: CVE-2020-27279
Creator: NVD / NIST
Published: 2021-01-06T16:15:12.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.71%

Last modified Jun 17, 2026

CVE-2020-27279 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A NULL pointer deference vulnerability has been identified in the protocol converter. An attacker could send a specially crafted packet that could reboot the device running Crimson 3.1 (Build versions prior to 3119.001).. EPSS estimates a 1.71% chance of exploitation in the next 30 days.

Description

A NULL pointer deference vulnerability has been identified in the protocol converter. An attacker could send a specially crafted packet that could reboot the device running Crimson 3.1 (Build versions prior to 3119.001).

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.71%

74.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redlion	Crimson	3.1

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-005-04Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-005-04Third Party Advisory, US Government Resource

Timeline

Published: Jan 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27279?

How severe is CVE-2020-27279?

CVE-2020-27279 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.71% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27279?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27279?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST