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Vulnerability Detail

CVE-2026-73450 Verified Sceawere Triage Sources: NVD / CISA KEV

Vulnerability Metadata

Severity
Medium
Score / CVSS
6.9
Creation Date
12h ago
Vendor
Arista Networks
Product
EOS
Attack Type
CWE-345: Insufficient Verification of Data Authenticity
Vector String
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H
Attack Complexity
HIGH

Narrative and Response

Description

On affected platforms running Arista EOS with MLAG Dual Primary Detection configured, an unauthenticated attacker with access to the Dual Primary Detection network segment can send specially crafted packets to interfere with the dual-primary state. If the MLAG primary switch fails while these packets are present, the secondary switch incorrectly concludes it is in a dual-primary condition and err-disables its interfaces, leading to a traffic interruption.

Executive Summary

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Technical Details

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Mitigations

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References

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Additional Metadata

{
  "score": "6.9",
  "pubDate": "2026-09-16T03:16:59.437Z",
  "pubdate": "2026-09-16T03:16:59.437Z"
}
CVE-2026-73450: CVE-2026-73450 Vulnerability (MEDIUM Severity, CVSS: 6.9) | Sceawere