CVE-2026-73436

MEDIUM CVSS 4.0: 6.0 EPSS 0.27%
Updated Sep 16, 2026
Arista Networks
Parameter Value
CVSS 6.0 (MEDIUM)
Type CWE-125 (Out-of-bounds Read), CWE-1284
Vendor Arista Networks
Public PoC No

On affected platforms running Arista EOS with OSPFv2 and OSPFv2 segment routing configured, a specially crafted OSPFv2 packet from an adjacent OSPF neighbor may cause OSPF to restart unexpectedly.

Attack Parameters

Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products

arista networks:eos