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5.6

Arista EOS: Unauthenticated Remote Reload through Serial Console

CVE-2025-8870 · published 11 months ago
Summary

Arista EOS devices can be remotely restarted by sending specific input through the serial console, potentially causing unexpected downtime. This vulnerability affects devices running Arista EOS, and users should update their software to the latest version to prevent unauthorized reloads.

Original advisory text
On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.153
On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.153
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.6 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-248Uncaught Exception
Timeline
Published14 Nov 2025
Updated3 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-8870 · NVD
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