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 0087
On the affected platforms running EOS, a malformed DHCP packet might cause the DHCP relay agent to restart. Arista is not aware of any malicious uses of this issue in customer networks.
The CVE-ID tracking this issue: CVE-2023-24510
Security Advisory 0086
On affected platforms running Arista EOS, an authorized attacker with permissions to perform gNMI requests could craft a request allowing it to update arbitrary configurations in the switch. This situation occurs only when the Streaming Telemetry Agent (referred to as the TerminAttr agent) is enabled and gNMI access is configured on the agent.
This situation occurs only when the Streaming Telemetry Agent (referred to as the TerminAttr agent) is enabled and gNMI access is configured on the agent.
The CVE-ID tracking this issue: CVE-2023-24512
Security Advisory 0085
This advisory details the impact of two issues discovered on Arista CloudEOS;
CVE-2023-24545: On affected platforms running Arista CloudEOS an issue in the Software Forwarding Engine (Sfe) can lead to a potential denial of service attack by sending malformed packets to the switch. This causes a leak of packet buffers and if enough malformed packets are received, the switch may eventually stop forwarding traffic.
CVE-2023-24513: On affected platforms running Arista CloudEOS a size check bypass issue in the Software Forwarding Engine (Sfe) may allow buffer over reads in later code. Additionally, depending on configured options this may cause a recomputation of the TCP checksum which could be leveraged in DDoS attacks.
Security Advisory 0084
On affected platforms running Arista EOS with SNMP configured and the snmpd process is running, a specially crafted SNMP packet can cause a memory leak in the snmpd process. This may result in the snmpd processing being terminated (causing SNMP requests to time out until snmpd is automatically restarted) and potential memory resource exhaustion for other processes on the switch. The vulnerability does not have any confidentiality or integrity impacts to the system.
Security Advisory 0083
On affected versions of the CloudVision Portal improper access controls on the connection from devices to CloudVision could enable a malicious actor with network access to CloudVision to get broader access to telemetry and configuration data within the system than intended. This advisory impacts the Arista CloudVision Portal product when run on-premise. It does not impact CloudVision as-a-Service.
Security Advisory 0082
On affected modular platforms running Arista EOS equipped with both redundant supervisor modules and having the redundancy protocol enabled, an existing unprivileged user can login to the standby supervisor as a root user, leading to a privilege escalation. Valid user credentials are required in order to exploit this vulnerability.
Security Advisory 0081
Arista Networks is providing this security update in response to the following related security vulnerabilities:
On Tuesday, November 1st it was announced that OpenSSL versions from 3.0.0 to 3.0.6 are vulnerable to two high severity vulnerabilities that if exploited, could result in significant disclosure of sensitive information from memory, remote compromise of system private keys, and potentially remote code execution.
Security Advisory 0080
This advisory documents the impact of 4 publicly disclosed vulnerabilities within Ethernet encapsulation protocols on Arista products. These issues affect multiple networking vendors and the coordination of this disclosure has been handled by IEEE. Affected Arista products include EOS systems and Wi-Fi Access Point. The affected software releases are listed below.
Security Advisory 0079
The CVE-ID tracking this issue: CVE-2022-29071
CVSSv3.1 Base Score: 4.0 (AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Common Weakness Enumeration (CWE): CWE-200
(Exposure of Sensitive Information to an Unauthorized Actor)
The internal bug tracking this issue: BUG 695468
Security Advisory 0078
July 19th, 2022
The CVE-ID tracking this issue: CVE-2021-28511
CVSSv3.1 Base Score: 5.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N)
Common Weakness Enumeration (CWE): CWE-284 Improper Access Control
The internal bug tracking this issue: BUG 641088