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Medium severity5.3NVD Advisory· Published Dec 28, 2020· Updated Jun 17, 2026

CVE-2020-15898

CVE-2020-15898

Description

In Arista EOS malformed packets can be incorrectly forwarded across VLAN boundaries in one direction. This vulnerability is only susceptible to exploitation by unidirectional traffic (ex. UDP) and not bidirectional traffic (ex. TCP). This affects: EOS 7170 platforms version 4.21.4.1F and below releases in the 4.21.x train; EOS X-Series versions 4.21.11M and below releases in the 4.21.x train; 4.22.6M and below releases in the 4.22.x train; 4.23.4M and below releases in the 4.23.x train; 4.24.2.1F and below releases in the 4.24.x train.

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Affected products

3
  • Arista/Eos2 versions
    cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*range: >=4.21.0f,<=4.21.4.1f
    • (no CPE)
  • Arista/EOSdescription

Patches

Vulnerability mechanics

References

1

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