What is GHSA-vq63-cff6-37q2?

GHSA-vq63-cff6-37q2 is a security advisory published by GitHub Security Advisories with High severity. On affected platforms running Arista EOS with IS-IS configured, an unauthenticated attacker who...

Which CVE IDs does GHSA-vq63-cff6-37q2 cover?

GHSA-vq63-cff6-37q2 covers the following CVE IDs: CVE-2026-73459. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-vq63-cff6-37q2?

GHSA-vq63-cff6-37q2 has a CVSS v3 base score of 7.4, published by GitHub Security Advisories.

GHSA-vq63-cff6-37q2HighCVSS 7.4

On affected platforms running Arista EOS with IS-IS configured, an unauthenticated attacker who...

Vendor

GitHub Security Advisories

Published

September 16, 2026

Last Modified

September 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-73459 →

📋 Description

On affected platforms running Arista EOS with IS-IS configured, an unauthenticated attacker who can inject a specially crafted IS-IS LSP PDU can cause the legitimate LSP to be unexpectedly purged from the IS-IS link-state database. This may result in traffic loss.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-73459
https://www.arista.com/en/support/advisories-notices/security-advisory/24716-security-advisory-0160
https://github.com/advisories/GHSA-vq63-cff6-37q2