What is CVE-2025-41656?

CVE-2025-41656 is a critical-severity vulnerability in Pilz Industrialpi 4 With Firmware Bullseye, classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2025-07-01.

How severe is CVE-2025-41656?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2025-41656 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Pilz Industrialpi 4 With Firmware Bullseye

CVE-2025-41656

An unauthenticated remote attacker can run arbitrary commands on the affected devices with high privileges because the authentication for the Node_RED server is not configured by default.

Vulnerability class: Broken Authentication

EPSS: 0.105 (95.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Pilz Industrialpi 4 With Firmware Bullseye — versions 0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

wallyschag/CVE-2025-41656

References

info@cert.vde.com

Frequently asked questions

What is CVE-2025-41656?: CVE-2025-41656 is a critical-severity vulnerability in Pilz Industrialpi 4 With Firmware Bullseye, classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2025-07-01.
How severe is CVE-2025-41656?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2025-41656 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.