CVE-2026-73440
Description
On affected platforms running Arista EOS with Simple Network Management Protocol (SNMP) configured, SNMPv3 local or remote user credentials may be exposed as a one-way hashed, localized key value within the device's running and sanitized configurations. An authenticated user who gains access to this sensitive information could leverage it to perform unauthorized read operations on SNMP tables or to send fraudulent trap notifications to the Network Management System (NMS). This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
How to fix
- Arista Networks EOS4.33.0F or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Arista Networks EOS | 4.36.0F ≤ v ≤ 4.36.1F, 4.35.0F ≤ v ≤ 4.35.5M, 4.34.0F ≤ v ≤ 4.34.7.1M, 4.33.0F ≤ v ≤ 4.33.9M, 1.0.0 ≤ v < 4.33.0F | 4.33.0F |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.