Cyber Resilience

CVE-2023-51842

HighPublic PoC

Published: 29 January 2024

Published
29 January 2024
Modified
02 June 2025
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0025 48.8th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-51842 is a high-severity an unspecified weakness vulnerability in Meshcentral Meshcentral. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Adversary-in-the-Middle (T1557); ranked at the 48.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

An algorithm-downgrade issue was discovered in Ylianst MeshCentral 1.1.16.

CWE(s)
NVD-CWE-Other

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
attack.mitre.org →
T1600 Weaken Encryption Defense Impairment
Adversaries may compromise a network device’s encryption capability in order to bypass encryption that would otherwise protect data communications.
attack.mitre.org →
Why these techniques?

The algorithm-downgrade vulnerability in MeshCentral enables adversaries to force weaker cryptographic algorithms during communication, facilitating adversary-in-the-middle attacks (T1557) and weakening encryption protections (T1600).

Affected Assets

meshcentral
meshcentral
1.1.16

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References