CVE-2026-19640
On affected platforms running Arista EOS, an authenticated user with access to the gNMI (gRPC Network Management Interface) may receive incorrect authorization results, potentially allowing access beyond their currently assigned permissions. This issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.
- Published Sep 16, 2026
- CVSS 2.3 low
- 0.2% chance of exploitation in the next 30 days (EPSS)