CVE-2026-73454

Security Advisory 0165

State: Published
Severity: 8.6 High
Published: Sep 16, 2026
Updated: Sep 17, 2026
Reserved: Aug 12, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	Arista
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N	Arista

Weaknesses

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

Affected Products

Product	Versions
EOSArista Networks	4.30.0F to before 4.31.0FAffected 4.31.0F to before 4.32.0FAffected 4.32.0F to before 4.33.0FAffected 4.33.0F through 4.33.8MAffected 4.34.0F through 4.34.7MAffected 4.35.0F through 4.35.5MAffected 4.36.0F through 4.36.0.1FAffected

References

Arista Networks Security Advisory 0165vendor-advisory

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