---
id: CVE-2026-73454
title: >-
  On affected platforms running Arista EOS with gRPC Network Security Interface
  (gNSI) Credentialz configured, a specially crafted request can cause
  unintended modifications to the target account's properties
summary: >-
  On affected platforms running Arista EOS with gRPC Network Security Interface
  (gNSI) Credentialz configured, a specially crafted request can cause
  unintended modifications to the target account's properties. This may result
  in the accoun…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-77
vendor: Arista Networks
product: EOS
affected:
  - EOS >= 4.30.0F < 4.31.0F
  - EOS >= 4.31.0F < 4.32.0F
  - EOS >= 4.32.0F < 4.33.0F
  - EOS >= 4.33.0F <= 4.33.8M
  - EOS >= 4.34.0F <= 4.34.7M
  - EOS >= 4.35.0F <= 4.35.5M
  - EOS >= 4.36.0F <= 4.36.0.1F
published: '2026-09-16'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T04:18:00.073'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73454'
references:
  - url: >-
      https://www.arista.com/en/support/advisories-notices/security-advisory/24721-security-advisory-0165
    label: psirt@arista.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-16T14:51:19.578414Z'
epss: 0.00296
epssPercentile: 0.22411
ingestedAt: '2026-09-16T08:52:29.601Z'
---

## Overview

On affected platforms running Arista EOS with gRPC Network Security Interface (gNSI) Credentialz configured, a specially crafted request can cause unintended modifications to the target account's properties. This may result in the account being assigned elevated privileges or access beyond what an administrator intended.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.