CVE-2020-15897
mediumpriority · track · 30EPSS 0.013 · 70 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2020-15897cnnvd
- https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54cnnvd
- https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54enisa_euvd
- https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54ExploitVendor Advisorynvd
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