CVE-2026-73454 — HIGH (8.1)

Vulnerability 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.

CVSS Score

8.1

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-77

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24721-sec

FAQ

What is CVE-2026-73454?

CVE-2026-73454 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 prop...

How severe is CVE-2026-73454?

CVE-2026-73454 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-73454?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.