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 このメールアドレスはスパムボットから保護されています。閲覧するにはJavaScriptを有効にする必要があります。.
Report security vulnerabilities found in Arista products to the PSIRT team via このメールアドレスはスパムボットから保護されています。閲覧するにはJavaScriptを有効にする必要があります。. 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 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.
Security Advisory 0152
September 9, 2026
Crafted login password can cause a session resource leak, potentially causing DoS for authentication.
Security Advisory 0151
September 9, 2026
Restarting the secondary switchcard agent can cause Security ACLs on shared SVIs to stop functioning, resulting in incorrect traffic forwarding.
Security Advisory 0150
September 9, 2026
Brief window between 802.1X authentication and policy enforcement allows a supplicant unrestricted network access.
Security Advisory 0149
September 9, 2026
RADIUS authorization messages may be misrouted, potentially granting unauthorized network access to 802.1X clients. Stale access policies may persist on a port after a transient failure
