← All Advisories

Specially Crafted Packet Causes the Arista EOS OSPFv3 Agent to Restart Unexpectedly

Last refreshed2026-09-29

Status: NEW  |  Advisory ID: CVE-2026-73455

Key Details

CVECVE-2026-73455
CVSS Score / Version7.5 (High) / CVSS v3.1
Updated2026-09-16
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high.
Classified asCWE-130 (Improper Handling of Length Parameter Inconsistency)

What to Know

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.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-73455
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-73455