Missing Handler vulnerability in the proprietary management protocol (port TCP 5558) of Hitachi Energy FOX61x, XCM20 allows an attacker that exploits the vulnerability by activating SSH on port TCP 5558 to cause disruption to the NMS and NE communication. This issue affects: Hitachi Energy FOX61x versions prior to R15A. Hitachi Energy XCM20 versions prior to R15A.

Related CVEs

CVE-2021-40334

Key Information

GHSA ID

GHSA-4cmw-rq6h-3v7m

Published

December 3, 2021 12:00 AM

Last Modified

December 9, 2021 12:01 AM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: June 28, 2025 6:27 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.