Cyber Resilience

CVE-2023-39544

High

Published: 17 November 2023

Published
17 November 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0007 21.4th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-39544 is a high-severity Missing Authorization (CWE-862) vulnerability in Nec Expresscluster X. Its CVSS base score is 8.8 (High).

Operationally, ranked at the 21.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and earlier allows a attacker to log in to the product may execute an arbitrary command.

CWE(s)

Related Threats

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

Affected Assets

nec
expresscluster x
1.0, 2.0, 2.1, 3.0, 3.1
nec
expresscluster x singleserversafe
1.0, 2.0, 2.1, 3.0, 3.1

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-862

Requiring an access control policy ensures authorization checks are defined and applied for critical functions.

addresses: CWE-862

Reviews of access controls detect missing authorization checks on critical functions or resources.

addresses: CWE-862

Documenting permitted unauthenticated actions prevents missing authorization by making all exceptions explicit and subject to organizational review.

addresses: CWE-862

Requiring attribute association with information prevents authorization from being performed without necessary security or privacy context.

addresses: CWE-862

Mandating authorization prior to allowing remote connections addresses missing authorization for remote access.

addresses: CWE-862

Mandating authorization before wireless connections are allowed prevents missing authorization for wireless access.

addresses: CWE-862

The control requires authorization before allowing mobile device connections, directly mitigating missing authorization for system access.

addresses: CWE-862

Requiring approvals for account creation and specifying authorizations ensures authorization is not missing for system access.

References