CVE-2026-73435

HIGH8.2

Published 2026-09-16 · Updated 2026-09-16 · Source psirt@arista.com

Description

On affected platforms running Arista EOS with Open Shortest Path First version 2 (OSPFv2) configured, a specially crafted OSPFv2 packet from an unauthenticated attacker on the same broadcast segment, with OSPFv2 authentication configured can cause adjacency flapping and packet loss. The disruption can affect routing across the broader OSPF domain.

CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H

CWE-345

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24727-security-advisory-0171

View on NVD

Related CVEs

Same severity, most recent

CVE-2026-92465
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Themeum WP Mega Menu allows Blind SQL Injection. This issue affects WP Mega Menu: from n/a through 1.4.2.
2026-09-16 · score 7.6
CVE-2026-92456
yshop-crm through 2.1.3 fails to enforce authorization on the saveRedisSet and getRedisSet endpoints in CrmCustomerController, allowing any authenticated back-office user to read and modify installation-wide lead-allocation and customer auto-recycling policy. Attackers can invoke these endpoints to manipulate shared Redis keys controlling customer auto-recycling behavior, causing mass customer data deletion, disabling lead recycling, or blocking customer creation across the deployment.
2026-09-16 · score 7.1
CVE-2026-73455
On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, a specially crafted packet can cause the OSPFv3 agent to restart unexpectedly.
2026-09-16 · score 7.5
CVE-2026-81634
In NLnet Labs Unbound up to and including 1.26.0, a 255 length query name with a large TCP response can lead to a heap buffer overflow during the RRSet canonicalisation routine. This is caused by missing to add the first owner name into the buffer length check. A malicious actor operating a malicious name server or tampering with an incoming response to Unbound (canonicalisation happens before DNSSEC validation), can trigger the vulnerability.
2026-09-16 · score 7.5
CVE-2026-73464
On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management Interface (gNMI) access to execute arbitrary code with root privileges on the switch.
2026-09-16 · score 8.8