CVE-2026-73464

Security Advisory 0166

HIGH

8.8

CVSS Score

Published: September 16, 2026 at 08:32 AM UTC

Updated: September 17, 2026 at 04:18 AM UTC

1 product affected across 1 vendorArista EOS

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Severity

HIGH8.8

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Arista EOS · Arista Networks

60%

4.29.0F ≤ v < 4.30.0F4.30.0F ≤ v < 4.31.0F4.31.0F ≤ v < 4.32.0F4.32.0F ≤ v < 4.33.0F4.33.0F ≤ v ≤ 4.33.8M4.34.0F ≤ v ≤ 4.34.7M4.35.0F ≤ v ≤ 4.35.5M4.36.0F ≤ v ≤ 4.36.0.1F4.29.0F 4.30.0F 4.31.0F 4.32.0F 4.33.0F 4.34.0F 4.35.0F 4.36.0F

Affected range stops below 4.30.0F, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.31.0F, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.32.0F, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.33.0F, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.arista.com/en/support/advisories-notices/security-advisory/24722-security-advisory-0166

References (1)

Vendor Advisory

Source: cverecord

https://www.arista.com/en/support/advisories-notices/security-advisory/24722-security-advisory-0166

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHArista

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-94

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