How severe is CVE-2020-27279?

CVE-2020-27279 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-27279 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27279?

CVE-2020-27279 affects Redlion Crimson. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27279?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-27279 published?

CVE-2020-27279 was published on 2021-01-06 and last updated on 2026-06-17.

CVE-2020-27279

CVE-2020-27279 is a high-severity vulnerability in Redlion Crimson with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Redlion Crimson
Published: 2021-01-06
Last modified: 2026-06-17

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).

Frequently asked questions

What is CVE-2020-27279?: 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).
How severe is CVE-2020-27279?: CVE-2020-27279 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-27279 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27279?: CVE-2020-27279 affects Redlion Crimson. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27279?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-27279 published?: CVE-2020-27279 was published on 2021-01-06 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-005-04

Affected products (1)

cpe:2.3:a:redlion:crimson:3.1:*:*:*:*:*:*:*

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