1275 matches found
CVE-2026-19641: Improper Encoding or Escaping of Output
On affected platforms running Arista EOS with password authentication configured, a specially crafted password can create orphan authentication sessions. Repeated exploitation of this issue can exhaust available authentication resources, resulting in legitimate users being unable to log in to the...
PT-2026-93176
On affected platforms running Arista EOS with VRRPv2 IP Authentication Header IP-AH authentication configured, an unauthenticated attacker with access to the layer 2 network segment on which VRRP is running could bypass VRRP authentication and claim the virtual router master role, enabling the...
PT-2026-93170
On affected platforms running Arista EOS with Dynamic Host Configuration Protocol DHCP relay/snooping configured with the information option Option 82, or with the DHCP server configured with match criteria based on the information option, an unauthenticated attacker connected to a client-facing...
PT-2026-92382
Name of the Vulnerable Software and Affected Versions Arista EOS affected versions not specified Description User passwords may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled. Exploitation requires the actor to...
PT-2026-93218
On affected platforms running Arista EOS with IS-IS configured on a broadcast interface, an unauthenticated attacker can send a crafted IS-IS Hello Protocol Data Unit PDU that causes the device to tear down an established IS-IS adjacency. This may result in traffic disruption and loss of IP...
CVE-2026-73466: Insertion of Sensitive Information into Log File
On affected platforms running Arista EOS, under certain circumstances user passwordss may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled. To exploit these vulnerabilities, a malicious actor must already possess...
PT-2026-92042
Name of the Vulnerable Software and Affected Versions Arista EOS affected versions not specified Description On platforms running Arista EOS with the gRPC Network Packet Sampling Interface gNPSI enabled, an unauthenticated gNPSI client can send a specially crafted request. This can lead to...
PT-2026-92381
Name of the Vulnerable Software and Affected Versions Arista EOS affected versions not specified Description On affected platforms, plaintext private keys may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled...
CVE-2026-73465: Insertion of Sensitive Information into Log File
On affected platforms running Arista EOS, under certain circumstances plaintext private keys may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled. To exploit these vulnerabilities, a malicious actor must already...
CVE-2026-73467: Insertion of Sensitive Information into Log File
On affected platforms running Arista EOS, under certain circumstances plaintext shared secrets for configured Terminal Access Controller Access-Control System Plus TACACS+ servers...
CVE-2026-73458: Incorrect Implementation of Authentication Algorithm
On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detection BFD sessions configured, a specially crafted packet can cause the BFD sessions to go down. This may result in undesirable network changes because various routing protocols monitor status on BFD sessions...
PT-2026-93219
On affected platforms running Arista EOS with IS-IS configured, an unauthenticated attacker who can inject a specially crafted IS-IS LSP PDU can cause the legitimate LSP to be unexpectedly purged from the IS-IS link-state database. This may result in traffic loss...
CVE-2026-73444: Incorrect Implementation of Authentication Algorithm
On affected platforms running Arista EOS with VRRPv2 IP Authentication Header IP-AH authentication configured, an unauthenticated attacker with access to the layer 2 network segment on which VRRP is running could bypass VRRP authentication and claim the virtual router master role, enabling the...
PT-2026-92043
Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface gNPSI enabled, the gNPSI client credentials might be logged in clear text in local or remote accounting logs to authenticated users...
PT-2026-92429
Name of the Vulnerable Software and Affected Versions Arista EOS affected versions not specified Description On platforms running Arista EOS with authenticated Bidirectional Forwarding Detection BFD sessions configured, a specially crafted packet can cause these sessions to crash or go down. This...
PT-2026-92383
Name of the Vulnerable Software and Affected Versions Arista EOS affected versions not specified Description On affected platforms running Arista EOS, plaintext shared secrets for configured Terminal Access Controller Access-Control System Plus TACACS+ servers may be exposed under certain...
CVE-2026-73449
On affected platforms running Arista EOS with both 802.1X port authentication and the RADIUS proxy feature configured with dynamic authorization, a low-privileged attacker on an adjacent network segment who induces a RADIUS packet through a configured RADIUS proxy client can prevent RADIUS dynami...
CVE-2026-77191
CVE-2026-77191 affects Arista EOS with 802.1X authentication and ACL-based per-supplicant authorization configured. When hardware ACL resources reach capacity during bulk authentication, an authenticated supplicant on an adjacent network segment may send unrestricted traffic during a brief window...
CVE-2026-77191 All of the CVEs covered in this advisory apply to affected platforms running Arista EOS with 802.1X authentication and authorization enabled and Access Control Lists (ACLs) configured for per-supplicant policy enforcement. An authenticated supplicant on an
An authenticated supplicant on an adjacent network may bypass intended network authorization policy and send unrestricted traffic during a brief window milliseconds to seconds between the completion of the authentication phase and the full enforcement of its assigned ACL...
CVE-2026-77191 All of the CVEs covered in this advisory apply to affected platforms running Arista EOS with 802.1X authentication and authorization enabled and Access Control Lists (ACLs) configured for per-supplicant policy enforcement. An authenticated supplicant on an
An authenticated supplicant on an adjacent network may bypass intended network authorization policy and send unrestricted traffic during a brief window milliseconds to seconds between the completion of the authentication phase and the full enforcement of its assigned ACL...