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Vulnerability record · CVE-2024-27890 · published 4 June 2026

CVE-2024-27890: Missing authentication for critical function vulnerability

Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected. This can result in unexpected configuration being applied to the switch.

7.2 CVSS 4.0 High EPSS 4.4% · top 9.0% CWE-306 · Missing authentication for critical function Awaiting Analysis
7.2CVSS 4.0 base score
4.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
22 Jul 2026Last modified by NVD

Description

Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected. This can result in unexpected configuration being applied to the switch.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.arista.com/en/support/advisories-notices/security-advisory/19862-security-advisory-0099

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Source: NIST National Vulnerability Database (record CVE-2024-27890), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.