CVE-2026-73460

Description

On affected platforms running Arista EOS with IS-IS graceful restart enabled, an unauthenticated attacker who can inject a malformed IS-IS LSP PDU packet can cause the IS-IS graceful restart procedure to terminate prematurely. This may result in traffic loss following a restart event.

CVSS Vector

References

• https://www.arista.com/en/support/advisories-notices/security-advisory/24716-security-advisory-0160