Is CVE-2024-21653 actively exploited?

No active exploitation of CVE-2024-21653 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-21653 be exploited remotely?

Yes. CVE-2024-21653 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-21653?

CVE-2024-21653 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2024-21653

CWE-284Published: January 30, 2024· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The vantage6 technology enables to manage and deploy privacy enhancing technologies like Federated Learning (FL) and Multi-Party Computation (MPC). Nodes and servers get a ssh config by default that permits root login with password authentication. In a proper deployment, the SSH service is not exposed so there is no risk, but not all deployments are ideal. The default should therefore be less permissive. The vulnerability can be mitigated by removing the ssh part from the docker file and rebuilding the docker image. Version 4.2.0 patches the vulnerability.

NVD Source

Technical Analysis

CVE-2024-21653 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.