What is GHSA-9cmj-x939-3vm5?

GHSA-9cmj-x939-3vm5 is a security advisory published by GitHub Security Advisories with High severity. A out-of-bounds write vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0...

Which CVE IDs does GHSA-9cmj-x939-3vm5 cover?

GHSA-9cmj-x939-3vm5 covers the following CVE IDs: CVE-2026-126154. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9cmj-x939-3vm5?

GHSA-9cmj-x939-3vm5 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-9cmj-x939-3vm5HighCVSS 7.5

A out-of-bounds write vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0...

Vendor

GitHub Security Advisories

Published

November 12, 2026

Last Modified

November 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-126154 →

📋 Description

A out-of-bounds write vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2 all versions may allow a remote unauthenticated attacker to cause a denial of service via a specially crafted HTTP request.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-126154
https://fortiguard.fortinet.com/psirt/FG-IR-26-206
https://github.com/advisories/GHSA-9cmj-x939-3vm5