What is CVE-2025-12602?

CVE-2025-12602 is a critical-severity vulnerability in Azure-access Blu-ic2, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-11-01.

How severe is CVE-2025-12602?

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

Buffer overflow in Azure-access Blu-ic2

CVE-2025-12602

/etc/avahi/services/z9.service can be Arbitrarily Written.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (19.0th 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-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2025-12602?: CVE-2025-12602 is a critical-severity vulnerability in Azure-access Blu-ic2, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-11-01.
How severe is CVE-2025-12602?: Critical severity. CVSS v3 base score is 9.8 out of 10.