What is CVE-2025-12476?

CVE-2025-12476 is a critical-severity vulnerability in Azure-access Blu-ic2, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2025-10-29.

How severe is CVE-2025-12476?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Azure-access Blu-ic2

CVE-2025-12476

Resource Lacking AuthN.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5 .

Vulnerability class: Broken Authentication

EPSS: 0.003 (22.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Azure-access Blu-ic2
Azure-access Blu-ic2_firmware
Azure-access Blu-ic4
Azure-access Blu-ic4_firmware
Azure Access Technology Blu-ic2 — versions 0
Azure Access Technology Blu-ic4 — versions 0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

a0340c66-c385-4f8b-991b-3d05f6fd5220 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-12476?: CVE-2025-12476 is a critical-severity vulnerability in Azure-access Blu-ic2, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2025-10-29.
How severe is CVE-2025-12476?: Critical severity. CVSS v3 base score is 9.8 out of 10.