CVE-2026-73455

On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, a specially crafted packet can cause the OSPFv3 agent to restart unexpectedly.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.arista.com/en/support/advisories-notices/security-advisory/24729-security-advisory-0173

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-16 10:16

Updated : 2026-09-16 10:16

NVD link : CVE-2026-73455

Mitre link : CVE-2026-73455

CVE.ORG link : CVE-2026-73455

JSON object : View

Products Affected

No product.

CWE

CWE-130

Improper Handling of Length Parameter Inconsistency

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