CVE-2026-73460

MediumCVSS 6.1/10Last modified Sep 16, 2026

Description

On affected platforms running Arista EOS with IS-IS graceful restart enabled, an unauthenticated attacker who can inject a malformed IS-IS LSP PDU packet can cause the IS-IS graceful restart procedure to terminate prematurely. This may result in traffic loss following a restart event.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Weakness enumeration

CWE-863

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Sep 16, 2026
Last modified: Sep 16, 2026
NVD status: Awaiting Analysis

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