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CVE-2021-40334— SSH activation problem in the proprietary management protocol (port TCP 5558)

Quick assessment

Affected
Hitachi Energy FOX61x
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hitachi Energy Fox61X和Hitachi Energy Xcm20都是瑞士日立能源（Hitachi Energy）公司的产品。Hitachi Energy Fox61X是一款出色的多业务多路复用器。用于扩展现有通信基础设施。Hitachi Energy Xcm20是一款任务关键型系统中通信网络的全混合多业务接入和传输平台。用于满足关键任务系统 (Mcs) 的严格接入和传输网络要求。 Hitachi Energy Fox61X和Hitachi Energy Xcm20 存在安全漏洞，该漏洞

CVSS 8.6 · High EPSS 0.99% · P61
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I. Basic Information for CVE-2021-40334

Vulnerability Information
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Vulnerability Title
SSH activation problem in the proprietary management protocol (port TCP 5558)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
句柄缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Hitachi Energy Fox61X和Hitachi Energy Xcm20 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hitachi Energy Fox61X和Hitachi Energy Xcm20都是瑞士日立能源（Hitachi Energy）公司的产品。Hitachi Energy Fox61X是一款出色的多业务多路复用器。用于扩展现有通信基础设施。Hitachi Energy Xcm20是一款任务关键型系统中通信网络的全混合多业务接入和传输平台。用于满足关键任务系统 (Mcs) 的严格接入和传输网络要求。 Hitachi Energy Fox61X和Hitachi Energy Xcm20 存在安全漏洞，该漏洞
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Hitachi Energy FOX61x R15A ~ R15A -
Hitachi Energy XCM20 R15A ~ R15A -

II. Public POCs for CVE-2021-40334

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III. Intelligence Information for CVE-2021-40334

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Other References for CVE-2021-40334 (2)

IV. Related Vulnerabilities

Same product: FOX61x
Same vendor: Hitachi Energy

V. Comments for CVE-2021-40334

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