CVE-2020-15897

7.5 highEPSS 1.3%

High (7.5) in arista eos. EPSS 1.3% 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 traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router.

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: 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
Published: 2020-10-26
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/11760-security-advisory-54
https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54

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