Medium severity · published Nov 14, 2025
CVE-2025-8870
On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.
4.9
CVSS
0.2%
EPSS
No
On KEV
Description
On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.153
CVSS vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Physical
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EO
EOS · Arista Networks
4.34.2FX · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-8870
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-8870
www.arista.com
https://www.arista.com/en/support/advisories-notices/security-advisory/22811-security-advisory-0125
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