CVE-2020-17355

7.5 highEPSS 1.2%

High (7.5) in arista eos. EPSS 1.2% chance of exploitation in the next 30 days.

Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
Published: 2020-10-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

arista:eos

References

https://www.arista.com/en/support/advisories-notices/security-advisories/11759-security-advisory-53
https://www.arista.com/en/support/advisories-notices/security-advisories/11759-security-advisory-53

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