High severity8.6NVD Advisory· Published Dec 2, 2021· Updated Jun 17, 2026
CVE-2021-40334
CVE-2021-40334
Description
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.
Affected products
6Patches
Vulnerability mechanics
References
2- search.abb.com/library/Download.aspxnvdVendor Advisory
- search.abb.com/library/Download.aspxnvdVendor Advisory
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