CVE-2026-73464 Arista EOS - Remote Code Execution

Arista EOS with gRPC Network Management Interface (gNMI) enabled contains a remote code execution caused by specially crafted requests, letting authenticated gNMI clients execute arbitrary code with root privileges on the switch, exploit requires authenticated gNMI access.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.64% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-94

Vendor fix

Update to the latest version with gNMI security patches.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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