CVE-2026-73464: CWE-94 Improper Control of Generation of Code ('Code Injection') in Arista Networks EOS
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.
AI Analysis
Technical Summary
This vulnerability in Arista EOS arises from improper control of code generation within the gRPC Network Management Interface (gNMI). Specifically, a malicious authenticated client with gNMI access can craft requests that lead to arbitrary code execution with root privileges on the affected switch. The affected versions include multiple releases from 4.29.0F through 4.36.0.1F. The CVSS v3.1 base score is 8.8, indicating high severity, with network attack vector, low attack complexity, requiring privileges, no user interaction, and impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated user with gNMI access to execute arbitrary code as root on the switch, potentially leading to full system compromise. This can result in complete loss of confidentiality, integrity, and availability of the device and its network functions.
Mitigation Recommendations
No explicit patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is applied, restrict gNMI access to trusted and authenticated users only to reduce risk.
CVE-2026-73464: CWE-94 Improper Control of Generation of Code ('Code Injection') in Arista Networks EOS
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.
CVSS v3.1
Score 8.8high
Affected software
Arista Networks
EOS
pkg:github/arista-networks/eosRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Arista EOS arises from improper control of code generation within the gRPC Network Management Interface (gNMI). Specifically, a malicious authenticated client with gNMI access can craft requests that lead to arbitrary code execution with root privileges on the affected switch. The affected versions include multiple releases from 4.29.0F through 4.36.0.1F. The CVSS v3.1 base score is 8.8, indicating high severity, with network attack vector, low attack complexity, requiring privileges, no user interaction, and impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated user with gNMI access to execute arbitrary code as root on the switch, potentially leading to full system compromise. This can result in complete loss of confidentiality, integrity, and availability of the device and its network functions.
Mitigation Recommendations
No explicit patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is applied, restrict gNMI access to trusted and authenticated users only to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Arista
- Date Reserved
- 2026-08-12T16:45:03.511Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa578955bf5e2cf540b1f5
Added to database: 09/16/2026, 08:47:05 UTC
Last enriched: 09/16/2026, 09:01:44 UTC
Last updated: 09/16/2026, 22:11:11 UTC
Views: 12
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