CVE-2026-73436

6.0 mediumEPSS 0.3%

Medium (6.0). EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.0 medium

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.5 medium

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-31)
CWEs: CWE-125, CWE-1284
Published: 2026-09-16
Modified: 2026-09-16
Record from: the NVD, synced 2026-10-19

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24727-security-advisory-0171

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