Sensitive Data Exposure in Arista EOS Products Due to Logging Issue
CVE-2026-2380

5.1MEDIUM

Key Information:

Vendor

Arista Networks

Status
Eos
Vendor
CVE Published:
16 September 2026

What is CVE-2026-2380?

Arista EOS is prone to a vulnerability that inadvertently logs sensitive requests and responses related to OpenConfig services. This can lead to the storage of critical information, such as sensitive CLI commands and configuration secrets, either on the local device or on remote servers, jeopardizing the confidentiality of user credentials and configuration data. Although discovered internally and with no known malicious exploitation reported, this vulnerability requires immediate attention to safeguard network integrity.

Affected Version(s)

EOS 4.36.0F <= 4.36.1F

EOS 4.35.0F < 4.36.0F

EOS 4.34.0F < 4.35.0F

References

https://www.arista.com/en/support/advisories-notices/secu...
vendor-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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