CVE-2026-73454Network attack vector

Authenticated privilege escalation via Credentialz command injection

Published Sep 16, 2026 · Updated Sep 16, 2026

Command injection in affected Arista EOS releases allows remote authenticated users to modify account privileges via gNSI Credentialz. Arista has not published the affected Credentialz RPC or the command construction that mishandles request elements. Exploitation requires authenticated access to the non-default Credentialz service and can change a target account's role, privilege level, or shell.

CVSS severity8.1
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in affected Arista EOS releases allows remote authenticated users to modify account privileges via gNSI Credentialz. Arista has not published the affected Credentialz RPC or the command construction that mishandles request elements. Exploitation requires authenticated access to the non-default Credentialz service and can change a target account's role, privilege level, or shell.

The record

CVE
CVE-2026-73454
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
Arista Networks
Product
Arista EOS
Classifications
CWE-77, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.30.0F <4.31.0F
  2. Affected versionversion=4.31.0F <4.32.0F
  3. Affected versionversion=4.32.0F <4.33.0F
  4. Affected versionversion=4.33.0F <=4.33.8M
  5. Affected versionversion=4.34.0F <=4.34.7M
  6. Affected versionversion=4.35.0F <=4.35.5M
  7. Affected versionversion=4.36.0F <=4.36.0.1F

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Arista Networks · Arista EOSversion=4.30.0F <4.31.0F; version=4.31.0F <4.32.0F; version=4.32.0F <4.33.0F; version=4.33.0F <=4.33.8M; version=4.34.0F <=4.34.7M; version=4.35.0F <=4.35.5M; version=4.36.0F <=4.36.0.1F

Published CVSS scores

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo