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 0227
November 10, 2026
Arista C-260 and C-250 access points ship with fleet-wide static cryptographic keys used for firmware image verification and SSLP authentication. An attacker who is able to access these keys would be able to create modified firmware that will pass verification checks. This vulnerability is specific to the C-260 and C-250 models; other access point models enforce digitally signed upgrade images with secure boot and are not affected by this issue.
Security Advisory 0226
November 10, 2026
Many of Arista's products utilize industry-standard server hardware platforms. Periodically, vulnerabilities are identified within the underlying server components, which are documented and published by the OEM hardware vendor as security advisories. This advisory provides a consolidated reference of such vulnerabilities affecting the server hardware used by specific Arista SKUs.
Security Advisory 0225
November 10, 2026
On affected platforms running Arista EOS under specific link configurations an attacker with direct connectivity to the system may cause system CPU and memory utilization to increase considerably leading to slow responsiveness and eventually may cause the system to reboot.
Security Advisory 0224
November 10, 2026
On affected platforms running Arista EOS with Precision Time Protocol (PTP) configured, an unauthenticated attacker with network access to a PTP-enabled port can create a denial of service (DoS) condition by sending traffic to the system.
Security Advisory 0223
November 10, 2026
All of the CVEs covered in this advisory apply to affected platforms running Arista EOS with the Seamless Bidirectional Forwarding Detection (S-BFD) feature configured.
Security Advisory 0222
November 10, 2026
These vulnerabilities affect EOS’s Resource Public Key Infrastructure (RPKI) client, which obtains Route Origin Authorization(ROA) data from an external cache for Border Gateway Protocol (BGP) route validation. An attacker controlling the RPKI cache or router to cache traffic can send a crafted RPKI message that can cause incorrect validation results or reset the RPKI agent.
Security Advisory 0221
November 10, 2026
This advisory covers two vulnerabilities in the Routing Information Protocol version 2 (RIPv2) MD5 authentication on Arista EOS-based products. An unauthenticated attacker with adjacent network access may be able to interrupt routing services or inject unauthorized routes.
Security Advisory 0220
November 10, 2026
On affected Arista EOS platforms with Routing Information Protocol version 2 (RIPv2) configured, under certain conditions, RIPv2 might be silently enabled on management interfaces even when the RIP agent intends to disable it. It allows an unauthenticated attacker with access to the adjacent network to send crafted RIPv2 route advertisements to the device's management IP address. The device could accept and install those routes without authentication.
Security Advisory 0219
November 10, 2026
On affected platforms running Arista EOS with IPsec AutoVPN Feature configured with dynamic paths, the configured IPsec replay window may not be applied as expected. As a result, IPsec anti-replay protection may be silently inactive even when it has been configured via an SA policy, contrary to the operator’s expectation. This issue does not allow decryption of the affected IPsec traffic, but it may allow replay of previously valid protected traffic.
Security Advisory 0218
November 10, 2026
On affected EOS versions with the eAPI service enabled, a specially crafted HTTP request can allow an unauthenticated, remote attacker to read arbitrary files, including sensitive credentials from the switch filesystem.