What is GHSA-78f4-9r4h-vc9q?

GHSA-78f4-9r4h-vc9q is a security advisory published by GitHub Security Advisories with Critical severity. On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detection ...

Which CVE IDs does GHSA-78f4-9r4h-vc9q cover?

GHSA-78f4-9r4h-vc9q covers the following CVE IDs: CVE-2026-73458. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-78f4-9r4h-vc9q?

GHSA-78f4-9r4h-vc9q has a CVSS v3 base score of 8.2, published by GitHub Security Advisories.

GHSA-78f4-9r4h-vc9qCriticalCVSS 8.2

On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detection ...

Vendor

GitHub Security Advisories

Published

September 15, 2026

Last Modified

September 15, 2026

🔗 CVE IDs covered (1)

CVE-2026-73458 →

📋 Description

On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detection (BFD) sessions configured, a specially crafted packet can cause the BFD session(s) to go down. This may result in undesirable network changes because various routing protocols monitor status on BFD session(s).

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-73458
https://www.arista.com/en/support/advisories-notices/security-advisory/24710-security-advisory-0154
https://github.com/advisories/GHSA-78f4-9r4h-vc9q