CVE-2026-73436CWE-125CWE-1284

CVE-2026-73436

Medium · published September 16, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
18.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
6.0 · 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
EPSS
0.00269 · 18.0th percentile
Weaknesses
CWE-125 · Out-of-bounds Read; CWE-1284 · Improper Validation of Specified Quantity in Input
Published
2026-09-16T14:16Z
References (1)
https://www.arista.com/en/support/advisories-notices/security-advisory/24727-security-advisory-0171 · [email protected]
EPSS history
Timeline
  • 17 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 16 SEP 09:19Z
    Security Advisory 0171
    cvelistv5