Description
On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management Interface (gNMI) access to execute arbitrary code with root privileges on the switch.
Published: 2026-09-16
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

The following EOS releases contain the fix for this vulnerability: - 4.33.9M and later releases in the 4.33.x train - 4.34.7.1M and later releases in the 4.34.x train - 4.35.6M and later releases in the 4.35.x train - 4.36.1F and later releases in the 4.36.x train No hotfix is available for this vulnerability.


Vendor Workaround

Disable any gNMI transports: management api gnmi no transport grpc <name> Disabling all gNMI transports makes gNMI, gNOI, and gNSI services unavailable. If no RESTCONF or NETCONF transports are configured, the OpenConfig/Octa agent will also stop. CloudVision provisioning via TerminAttr is unaffected. All services resume when a gNMI transport is re-enabled. Note: This mitigation is not applicable to DMF-managed EOS switches. gNMI transports are enabled by default on these platforms and cannot be disabled.

Tracking

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Advisories

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History

Wed, 16 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 16 Sep 2026 08:45:00 +0000

Type Values Removed Values Added
Description On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management Interface (gNMI) access to execute arbitrary code with root privileges on the switch.
Title Security Advisory 0166
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Arista

Published:

Updated: 2026-09-16T14:10:16.369Z

Reserved: 2026-08-12T16:45:03.511Z

Link: CVE-2026-73464

cve-icon Vulnrichment

Updated: 2026-09-16T14:08:23.999Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-16T09:17:05.463

Modified: 2026-09-16T19:09:28.447

Link: CVE-2026-73464

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-16T15:30:11Z

Weaknesses