# CVE-2024-12378

## Summary

- **CVE ID:** CVE-2024-12378
- **Severity:** CRITICAL
- **CVSS Score:** 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-319
- **Published:** May 8, 2025
- **Last Modified:** Mar 13, 2026

## Description

On affected platforms running Arista EOS with secure Vxlan configured, restarting the Tunnelsec agent will result in packets being sent over the secure Vxlan tunnels in the clear.

## Affected Products

- Arista Networks — CloudVision Portal (4.32.0)
- Arista Networks — CloudVision Portal (4.31.0)
- Arista Networks — CloudVision Portal (4.30.0)
- Arista Networks — CloudVision Portal (4.29.0)
- Arista Networks — CloudVision Portal (4.28.0)
- Arista Networks — CloudVision Portal (4.27.0)

## References

- [CNA](https://www.arista.com/en/support/advisories-notices/security-advisory/21289-security-advisory-0113)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.50%
- **EPSS Percentile:** 41.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._