Is CVE-2026-54100 actively exploited?

No active exploitation of CVE-2026-54100 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-54100 be exploited remotely?

Partially. CVE-2026-54100 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-54100?

CVE-2026-54100 has a CVSS score of 8.3 (HIGH).

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HIGH

CVE-2026-54100

CWE-295Published: June 22, 2026· Updated: Jun 23, 2026

8.3

CVSS v3.1

EPSS:0.16%probability of exploitation in 30 daysPercentile:5.2th

Official Description

A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of Windows node identities in the cluster.

NVD Source

Technical Analysis

CVE-2026-54100 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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 8.3.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.