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 该邮件地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。.

Report security vulnerabilities found in Arista products to the PSIRT team via 该邮件地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。. 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 0162

September 9, 2026

A privileged attacker can exploit certain operation to execute arbitrary commands with root privileges, leading to full device compromise.

Security Advisory 0161

September 9, 2026

Attacker on the network can inject crafted control packets to corrupt MLAG state, causing traffic disruption.

Security Advisory 0160

September 9, 2026

Crafted packets can disrupt an IS-IS adjacency, causing traffic loss.
Crafted packets can corrupt the IS-IS link-state database, causing traffic loss.
Crafted packets can prematurely terminate IS-IS graceful restart, causing traffic disruption.

Security Advisory 0159

September 9, 2026

Crafted packets from an adjacent device can crash the IGMP snooping agent, causing DoS for multicast.

Security Advisory 0158

September 9, 2026

Unauthenticated attacker can send crafted requests to execute arbitrary code, leading to full device compromise. Client credentials may be logged in clear text when trace logging is enabled.

Security Advisory 0157

September 9, 2026

Replay attack on VRRP authentication can disrupt VRRP failover.
Timing attack on VRRP authentication can allow an attacker to forge auth and hijack the virtual IP.
VRRP shared secrets may be exposed in trace logs.

Security Advisory 0156

September 9, 2026

Insufficient validation in DHCP relay handling leads to traffic hijacking and DoS across target network segments.

Security Advisory 0155

September 9, 2026

Crafted packets can crash the DHCP relay agent, causing DoS for DHCP clients.

Security Advisory 0154

September 9, 2026

Unauthenticated attacker can send crafted packets that causes BFD sessions go down, triggering traffic loss

Security Advisory 0153

September 9, 2026

System credentials may be written in clear text to logs when debug trace is enabled.
User credentials may be written in clear text to logs when debug trace is enabled.
TACACS+ credentials may be written in clear text to logs when debug trace is enabled.