CVE-2026-19640

MEDIUM CVSS 4.0: 2.3 EPSS 0.19%
Updated Sep 16, 2026
Arista Networks
Parameter Value
CVSS 2.3 (MEDIUM)
Type CWE-863 (Incorrect Authorization)
Vendor Arista Networks
Public PoC No

On affected platforms running Arista EOS, an authenticated user with access to the gNMI (gRPC Network Management Interface) may receive incorrect authorization results, potentially allowing access beyond their currently assigned permissions. This issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products

arista networks:eos