What is GHSA-gg49-9mrv-ff3f?

GHSA-gg49-9mrv-ff3f is a security advisory published by GitHub Security Advisories with Critical severity. An authentication bypass vulnerability in the firmware update endpoint of Hitachi Energy RTU500...

Which CVE IDs does GHSA-gg49-9mrv-ff3f cover?

GHSA-gg49-9mrv-ff3f covers the following CVE IDs: CVE-2026-8065. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-gg49-9mrv-ff3f?

GHSA-gg49-9mrv-ff3f has a CVSS v3 base score of 9.1, published by GitHub Security Advisories.

GHSA-gg49-9mrv-ff3fCriticalCVSS 9.1

An authentication bypass vulnerability in the firmware update endpoint of Hitachi Energy RTU500...

Vendor

GitHub Security Advisories

Published

September 29, 2026

Last Modified

September 29, 2026

🔗 CVE IDs covered (1)

CVE-2026-8065 →

📋 Description

An authentication bypass vulnerability in the firmware update endpoint of Hitachi Energy RTU500 allows an unauthenticated attacker to upload arbitrary firmware through a crafted POST request. Successful exploitation could allow the attacker to modify device functionality or compromise the integrity or availability of the device.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-8065
https://publisher.hitachienergy.com/preview?DocumentID=8DBD000251&LanguageCode=en&DocumentPartId=&Action=Launch
https://github.com/advisories/GHSA-gg49-9mrv-ff3f