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Vulnerability Details CVE-2021-28503

The impact of this vulnerability is that Arista's EOS eAPI may skip re-evaluating user credentials when certificate based authentication is used, which allows remote attackers to access the device via eAPI.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 62.8%
CVSS Severity
CVSS v3 Score 7.4
CVSS v2 Score 6.8
Products affected by CVE-2021-28503
  • Arista » Eos » Version: 4.22
    cpe:2.3:o:arista:eos:4.22
  • Arista » Eos » Version: 4.22.0f
    cpe:2.3:o:arista:eos:4.22.0f
  • Arista » Eos » Version: 4.22.1f
    cpe:2.3:o:arista:eos:4.22.1f
  • Arista » Eos » Version: 4.22.3m
    cpe:2.3:o:arista:eos:4.22.3m
  • Arista » Eos » Version: 4.22.4m
    cpe:2.3:o:arista:eos:4.22.4m
  • Arista » Eos » Version: 4.22.6m
    cpe:2.3:o:arista:eos:4.22.6m
  • Arista » Eos » Version: 4.22.7m
    cpe:2.3:o:arista:eos:4.22.7m
  • Arista » Eos » Version: 4.22.8.1f
    cpe:2.3:o:arista:eos:4.22.8.1f
  • Arista » Eos » Version: 4.22.9m
    cpe:2.3:o:arista:eos:4.22.9m
  • Arista » Eos » Version: 4.23
    cpe:2.3:o:arista:eos:4.23
  • Arista » Eos » Version: 4.23.0f
    cpe:2.3:o:arista:eos:4.23.0f
  • Arista » Eos » Version: 4.23.1f
    cpe:2.3:o:arista:eos:4.23.1f
  • Arista » Eos » Version: 4.23.2f
    cpe:2.3:o:arista:eos:4.23.2f
  • Arista » Eos » Version: 4.23.3m
    cpe:2.3:o:arista:eos:4.23.3m
  • Arista » Eos » Version: 4.23.4m
    cpe:2.3:o:arista:eos:4.23.4m
  • Arista » Eos » Version: 4.23.5m
    cpe:2.3:o:arista:eos:4.23.5m
  • Arista » Eos » Version: 4.23.6m
    cpe:2.3:o:arista:eos:4.23.6m
  • Arista » Eos » Version: 4.23.7m
    cpe:2.3:o:arista:eos:4.23.7m
  • Arista » Eos » Version: 4.23.9
    cpe:2.3:o:arista:eos:4.23.9
  • Arista » Eos » Version: 4.24
    cpe:2.3:o:arista:eos:4.24
  • Arista » Eos » Version: 4.24.0
    cpe:2.3:o:arista:eos:4.24.0
  • Arista » Eos » Version: 4.24.0f
    cpe:2.3:o:arista:eos:4.24.0f
  • Arista » Eos » Version: 4.24.2.1f
    cpe:2.3:o:arista:eos:4.24.2.1f
  • Arista » Eos » Version: 4.24.2.4f
    cpe:2.3:o:arista:eos:4.24.2.4f
  • Arista » Eos » Version: 4.24.2f
    cpe:2.3:o:arista:eos:4.24.2f
  • Arista » Eos » Version: 4.24.3.1m
    cpe:2.3:o:arista:eos:4.24.3.1m
  • Arista » Eos » Version: 4.24.5m
    cpe:2.3:o:arista:eos:4.24.5m
  • Arista » Eos » Version: 4.24.7
    cpe:2.3:o:arista:eos:4.24.7
  • Arista » Eos » Version: 4.25
    cpe:2.3:o:arista:eos:4.25
  • Arista » Eos » Version: 4.25.0
    cpe:2.3:o:arista:eos:4.25.0
  • Arista » Eos » Version: 4.25.0f
    cpe:2.3:o:arista:eos:4.25.0f
  • Arista » Eos » Version: 4.25.1f
    cpe:2.3:o:arista:eos:4.25.1f
  • Arista » Eos » Version: 4.25.2f
    cpe:2.3:o:arista:eos:4.25.2f
  • Arista » Eos » Version: 4.25.4
    cpe:2.3:o:arista:eos:4.25.4
  • Arista » Eos » Version: 4.25.5
    cpe:2.3:o:arista:eos:4.25.5
  • Arista » Eos » Version: 4.26
    cpe:2.3:o:arista:eos:4.26
  • Arista » Eos » Version: 4.26.0
    cpe:2.3:o:arista:eos:4.26.0
  • Arista » Eos » Version: 4.26.1
    cpe:2.3:o:arista:eos:4.26.1
  • Arista » Eos » Version: 4.26.1f
    cpe:2.3:o:arista:eos:4.26.1f
  • Arista » Eos » Version: 4.26.2
    cpe:2.3:o:arista:eos:4.26.2


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