Cyber Resilience

CVE-2021-40333

Critical

Published: 02 December 2021

Published
02 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.0 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H
EPSS Score 0.0020 41.7th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-40333 is a critical-severity Weak Password Requirements (CWE-521) vulnerability in Hitachienergy Fox615 Firmware. Its CVSS base score is 9.0 (Critical).

Operationally, ranked at the 41.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Weak Password Requirements vulnerability in Hitachi Energy FOX61x, XCM20 allows an attacker to gain unauthorized access to the Data Communication Network (DCN) routing configuration. This issue affects: Hitachi Energy FOX61x versions prior to R15A. Hitachi Energy XCM20 versions prior to…

more

R15A.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

hitachienergy
fox615 firmware
≤ r15a
hitachienergy
xcm20 firmware
≤ r15a

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-521

Configuration settings can define and enforce strong password requirements to avoid weak policies.

addresses: CWE-521

IA policy establishes password requirements, directly addressing weak password requirements.

addresses: CWE-521

Ensuring authenticators have sufficient strength of mechanism for intended use addresses weak password requirements.

addresses: CWE-521

Organization-wide password and authentication policies are applied uniformly, preventing weak local password requirements.

addresses: CWE-521

Facilitated training and awareness of current practices improves definition and enforcement of sufficiently strong password requirements.

addresses: CWE-521

Dedicated security resources support deployment of strong authentication systems and enforcement of robust password policies.

addresses: CWE-521

Vulnerability scans assess password policies and weak credential requirements against benchmarks.

addresses: CWE-521

User documentation on maintaining security includes password requirements, directly mitigating weak password policies.

References