Status: NEW | Advisory ID: CVE-2026-73435
| CVE | CVE-2026-73435 |
| CVSS Score / Version | 8.2 (High) / CVSS v3.1 |
| Updated | 2026-09-16 |
| CVSS Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H |
| CVSS Prose | attack vector is adjacent; attack complexity is low; privileges required is none; user interaction is none; scope is changed; confidentiality impact is none; integrity impact is low; availability impact is high. |
| Classified as | CWE-345 (Insufficient Verification of Data Authenticity) |
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. (NVD)
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-73435 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-73435 |