Executive Summary

Name CVE-2020-26569 First vendor Publication 2020-12-28
Vendor Cve Last vendor Modification 2021-01-27

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.9
Base Score 5.9 Environmental Score 5.9
impact SubScore 3.6 Temporal Score 5.9
Exploitabality Sub Score 2.2
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


In EVPN VxLAN setups in Arista EOS, specific malformed packets can lead to incorrect MAC to IP bindings and as a result packets can be incorrectly forwarded across VLAN boundaries. This can result in traffic being discarded on the receiving VLAN. This affects versions: 4.21.12M and below releases in the 4.21.x train; 4.22.7M and below releases in the 4.22.x train; 4.23.5M and below releases in the 4.23.x train; 4.24.2F and below releases in the 4.24.x train.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26569

CPE : Common Platform Enumeration

Application 1
Os 72

Sources (Detail)

Source Url
CONFIRM https://www.arista.com/en/support/advisories-notices/security-advisories/1199...

Alert History

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Date Informations
2022-01-27 01:43:11
  • Multiple Updates
2022-01-22 12:43:28
  • Multiple Updates
2021-12-16 01:43:53
  • Multiple Updates
2021-12-01 01:41:49
  • Multiple Updates
2021-01-28 00:22:52
  • Multiple Updates
2021-01-05 17:22:48
  • Multiple Updates
2020-12-28 21:23:11
  • First insertion