Vulnerability record · CVE-2026-73455 · published 16 September 2026

CVE-2026-73455: On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, a specia…

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.

8.9 CVSS 4.0 High EPSS 0.50% · top 59.9% CWE-130 · CWE-130 Awaiting Analysis

8.9CVSS 4.0 base score

0.50%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

1References

16 Sep 2026Last modified by NVD

Description

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:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-73455), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.