CVE-2026-73462

On affected platforms running Arista EOS with IGMP Internet Group Management Protocol snooping configured enabled by default on all VLANs, a network-adjacent unauthenticated attacker can send malformed network packets on an affected VLAN to cause the IGMP snooping agent to terminate unexpectedly...

CVE-2026-73462

CVE-2026-73462 affects the IGMP snooping agent in Arista EOS . An adjacent, unauthenticated attacker can send malformed packets to trigger an out-of-bounds read (CWE-125) , crashing the agent and causing multicast traffic to flood all ports on the affected VLAN. Repeated exploitation may lead to ...

EUVD-2026-81010

On affected platforms running Arista EOS with IGMP Internet Group Management Protocol snooping configured enabled by default on all VLANs, a network-adjacent unauthenticated attacker can send malformed network packets on an affected VLAN to cause the IGMP snooping agent to terminate unexpectedly...

Security Advisory 0159

Security Advisory 0159 PDF Date: September 9, 2026 Revision | Date | Changes ---|---|--- 1.0 | September 9, 2026 | Initial release The CVE-ID tracking this issue: CVE-2026-73462 CVSSv3.1 Base Score: 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSSv4.0 Base Score: 7.1...