Privilege escalation in Arista Networks Eos

CVE-2026-73461

On affected EOS platforms with AAA-based gRPC authorization enabled for OpenConfig, gRPC requests of an authenticated user to OpenConfig may use the wrong privilege level, resulting in an authorization using the wrong AAA method list. This does not impact non-gRPC OpenConfig requests such as NETCONF.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73461?
CVE-2026-73461 is a high-severity vulnerability in Arista Networks Eos, classified under Incorrect Privilege Assignment. CVSS score: 8.0/10. Published 2026-09-16.
How severe is CVE-2026-73461?
High severity. CVSS v3 base score is 8.0 out of 10.