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CVE-2021-40334

HIGH
Published 2021-12-02T18:28:18.525907Z
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Expert Analysis

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CVSS Score

V3.1
8.6
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.004
probability
of exploitation in the wild

There is a 0.4% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.603
Higher than 60.3% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Hitachi Energy

FOX61x

Affected Versions:

R15A
Hitachi Energy

XCM20

Affected Versions:

R15A

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-4cmw-rq6h-3v7m

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-40334
WEB https://search.abb.com/library/Download.aspx?DocumentID=8DBD000062&LanguageCode=en&DocumentPartId=&Action=Launch
WEB https://search.abb.com/library/Download.aspx?DocumentID=8DBD000069&LanguageCode=en&DocumentPartId=&Action=Launch

Advisory provided by GitHub Security Advisory Database. Published: December 3, 2021, Modified: December 9, 2021

References

https://search.abb.com/library/Download.aspx?DocumentID=8DBD000062&LanguageCode=en&DocumentPartId=&Action=Launch
https://search.abb.com/library/Download.aspx?DocumentID=8DBD000069&LanguageCode=en&DocumentPartId=&Action=Launch
Published: 2021-12-02T18:28:18.525907Z
Last Modified: 2024-09-16T23:11:57.958Z
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