What is GHSA-r538-x648-7vg8?

GHSA-r538-x648-7vg8 is a security advisory published by GitHub Security Advisories with Medium severity. A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7...

Which CVE IDs does GHSA-r538-x648-7vg8 cover?

GHSA-r538-x648-7vg8 covers the following CVE IDs: CVE-2026-59840. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-r538-x648-7vg8?

GHSA-r538-x648-7vg8 has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

GHSA-r538-x648-7vg8MediumCVSS 4.3

A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7...

Vendor

GitHub Security Advisories

Published

July 14, 2026

Last Modified

August 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-59840 →

📋 Description

A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions may allow attacker to information disclosure via

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-59840
https://fortiguard.fortinet.com/psirt/FG-IR-26-154
https://cert-portal.siemens.com/productcert/html/ssa-864900.html
https://github.com/advisories/GHSA-r538-x648-7vg8