How severe is CVE-2020-24360?

CVE-2020-24360 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-24360 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24360?

CVE-2020-24360 affects Arista Eos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-24360?

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-2020-24360 published?

CVE-2020-24360 was published on 2020-12-28 and last updated on 2026-06-17.

CVE-2020-24360

CVE-2020-24360 is a high-severity vulnerability in Arista Eos with a CVSS 3.x base score of 7.4. 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-404.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 6.1
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-404
Affected product: Arista Eos
Published: 2020-12-28
Last modified: 2026-06-17

Description

An issue with ARP packets in Arista’s EOS affecting the 7800R3, 7500R3, and 7280R3 series of products may result in issues that cause a kernel crash, followed by a device reload. The affected Arista EOS versions are: 4.24.2.4F and below releases in the 4.24.x train; 4.23.4M and below releases in the 4.23.x train; 4.22.6M and below releases in the 4.22.x train.

Frequently asked questions

What is CVE-2020-24360?: An issue with ARP packets in Arista’s EOS affecting the 7800R3, 7500R3, and 7280R3 series of products may result in issues that cause a kernel crash, followed by a device reload. The affected Arista EOS versions are: 4.24.2.4F and below releases in the 4.24.x train; 4.23.4M and below releases in the 4.23.x train; 4.22.6M and below releases in the 4.22.x train.
How severe is CVE-2020-24360?: CVE-2020-24360 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-24360 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24360?: CVE-2020-24360 affects Arista Eos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-24360?: 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-2020-24360 published?: CVE-2020-24360 was published on 2020-12-28 and last updated on 2026-06-17.

References

https://www.arista.com/en/support/advisories-notices/security-advisories/11999-security-advisory-59

Affected products (1)

cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*

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