CVE-2026-73447Critical· 9.1▾ Midnight

A privileged attacker can exploit certain operation to execute arbitrary commands with root privileges, leading to full device compromise

▾ Midnight zone — Critical, or high with PoC / in-the-wild

Depth score50/ 100 · Moderate

impact 50.1 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Sep 16, 2026

Updated

Sep 17, 2026

CVSS

9.1

Vendor

Arista Networks

Product

EOS

CWE

CWE-78

Depth score

50 · Moderate

EPSS

0.70% · p53

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

decided 2026-09-17

Exploitation: none
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 16.

0.8% → 0.7%▼ 0.05%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 1 day

Sep 16, 2026Published
Disclosed via NVD
Sep 16, 2026EPSS first tracked
0.8%
Sep 17, 2026Record revised
Last analysed / modified upstream

Arista Networks CWE-78 #nvd #cve.org

Affected

EOS >= 4.30.2F < 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

Full technical detail▾

Overview

A privileged attacker can exploit certain operation to execute arbitrary commands with root privileges, leading to full device compromise. An authenticated user can exploit gRPC Network Security Interface (gNSI) Certz service on Arista EOS-based products to escalate privileges and execute arbitrary OS commands via a crafted Certz Rotate request. The Bootz service is also affected.

Remediation

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

References

[email protected] — https://www.arista.com/en/support/advisories-notices/security-advisory/24718-security-advisory-0162

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org

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