High severity · published Sep 16, 2026
CVE-2026-73464
On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management In
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management Interface (gNMI) access to execute arbitrary code with root privileges on the switch.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EO
EOS · Arista Networks
4.29.0F before 4.30.0F; 4.30.0F before 4.31.0F; 4.31.0F before 4.32.0F; 4.32.0F before 4.33.0F; 4.33.0F through 4.33.8M; 4.34.0F through 4.34.7M; +2 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73464
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73464
www.arista.com
https://www.arista.com/en/support/advisories-notices/security-advisory/24722-security-advisory-0166
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