Security Advisories


Arista Networks is committed to maintaining the highest standards of security across our product portfolio. Leveraging extensive testing and monitoring of vulnerabilities to isolate and neutralize threats early, Arista's Product Security Incident Response Team (PSIRT) provides global coverage for public reporting of possible security vulnerabilities across the product portfolio.

The PSIRT team monitors industry-wide vulnerability reporting as well as providing a single point of contact for customers and interested third parties to investigate and identify potential threats. The PSIRT team also works to communicate these issues back to the user community in a timely manner.

Arista's approach to vulnerability management and links to best practice guidelines can be found here.

For technical assistance with workarounds and hotfix installations recommended in security advisories, please contact the Arista Support team at This email address is being protected from spambots. You need JavaScript enabled to view it..

Report security vulnerabilities found in Arista products to the PSIRT team via This email address is being protected from spambots. You need JavaScript enabled to view it.. It is recommended to use Arista's PGP key for secure and private communication directly with the PSIRT team.

Arista PSIRT is happy to work with researchers on discovered vulnerabilities in Arista products, the assignment of CVEs, and timelines for responsible disclosure. If a researcher discovers a new vulnerability they will be acknowledged in the advisory related to the vulnerability. Arista PSIRT is interested in receiving reports on issues affecting features in both Arista code as well as Open Source Software used in Arista products. Security issues found in Open Source Software which do not affect Arista products are out of the scope of Arista and should be referred to the appropriate CNA found here.


PSIRT Advisories

The following advisories and referenced materials are provided on an "as is" basis for use at your own risk. Arista Networks reserves the right to change or update the advisories without notice at any time.

Security Advisory 0071

January 11th, 2022

This advisory documents the impact of several vulnerabilities related to OpenConfig transport protocols in Arista’s EOS software. Affected software releases are listed below.

Patches and Mitigation for Security Advisory 0070

January 31st, 2022

This document is a companion document to Security Advisory 0070 and it describes the impact and mitigation procedures for this advisory across affected products.

Security Advisory 0070

May 20th, 2022

Arista Networks is providing this security update in response to the following related security vulnerabilities. CVE-2021-44228 is a Remote Code Execution vulnerability in Apache Log4j2 utility (versions <=2.14.1). An attacker who can control log messages or log message parameters can bypass authentication and execute arbitrary code loaded from malicious LDAP servers when message lookup substitution is enabled. CVE-2021-45046 addresses an incomplete fix in Log4j version 2.15.0. CVE-2021-4104 is a Remote Code Execution vulnerability by JMSAppender in Log4j version 1.x in non-default configurations. CVE-2021-45105 is a Denial-of-Service vulnerability by uncontrolled recursion from self-referential lookups in Log4j2 in a non-default Pattern Layout with a Context Lookup.

Security Advisory 0069

October 19th, 2021

The CVE-ID tracking this issue: CVE-2021-28496
CVSSv3.1 Base Score: 5.7( CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Security Advisory 0068

August 20th, 2021

The CVE-ID tracking this issue: CVE-2021-28494
CVSSv3.1 Base Score: 9.6( CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H)

Security Advisory 0067

August 20th, 2021

The CVE-ID tracking this issue: CVE-2021-28493
CVSSv3.1 Base Score: 8.4 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H)

Security Advisory 0066

August 20th, 2021

The CVE-ID tracking this issue: CVE-2021-28495
CVSSv3.1 Base Score: 7.2 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L)

Security Advisory 0065

August 20th, 2021

The CVE-ID tracking this issue: CVE-2021-28497
CVSSv3.1 Base Score: 4.4 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L)

Security Advisory 0064

August 20th, 2021

The CVE-ID tracking this issue: CVE-2021-28498
CVSSv3.1 Base Score: 8.7 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H)

The CVE-ID tracking this issue: CVE-2021-28499
CVSSv3.1 Base Score: 6.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L)

Security Advisory 0063

May 12th, 2021

This advisory documents the Arista's response to the public release of the set of vulnerabilities pertaining to Wi-Fi security known as Fragmentation and Forge