What is GHSA-986v-7qw9-p5p6?

GHSA-986v-7qw9-p5p6 is a security advisory published by GitHub Security Advisories with High severity. On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay...

Which CVE IDs does GHSA-986v-7qw9-p5p6 cover?

GHSA-986v-7qw9-p5p6 covers the following CVE IDs: CVE-2026-19655. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-986v-7qw9-p5p6?

GHSA-986v-7qw9-p5p6 has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-986v-7qw9-p5p6HighCVSS 6.5

On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay...

Vendor

GitHub Security Advisories

Published

September 15, 2026

Last Modified

September 15, 2026

🔗 CVE IDs covered (1)

CVE-2026-19655 →

📋 Description

On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay/snooping configured with the information option (Option 82), or with the DHCP server configured with match criteria based on the information option, an unauthenticated attacker connected to a client-facing VLAN(s) where the relay is configured can send a specially crafted packet that causes the DHCP Relay service to restart.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-19655
https://www.arista.com/en/support/advisories-notices/security-advisory/24711-security-advisory-0155
https://github.com/advisories/GHSA-986v-7qw9-p5p6