CVE-2026-73446: Arista Networks EOS, логическа грешка

Описание

Оригинално описание

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 reachability for prefixes advertised through that adjacency.

Засегнати продукти

• Arista Networks EOS: 4.36.0 до 4.36.1F; 4.35.0 до 4.35.5M; 4.34.0 до 4.34.7.1M; 4.33.0 до 4.33.9M; 4.32.0 преди 4.33.0F; 4.31.0 преди 4.32.0F

Вид слабост

• CWE-696 Incorrect Behavior Order

История

Други уязвимости в Arista Networks EOS

• 7.1CVE-2026-73462
• 6.0CVE-2026-73457
• 10.0CVE-2026-73456
• 3.0CVE-2026-73442
• 5.3CVE-2026-73443

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-73446
• https://nvd.nist.gov/vuln/detail/CVE-2026-73446
• https://www.arista.com/en/support/advisories-notices/security-advisory/24716-security-advisory-0160