CVE-2025-12422: Azure-Access Blu-IC2 Firmware

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Vulnerable Upgrade Feature (Arbitrary File Write) may lead to obtaining super user permissions on board.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.

Affected products

• Azure-Access Blu-IC2 Firmware: before 1.20 (fixed in 1.20)
• Azure-Access Blu-IC4 Firmware: before 1.20 (fixed in 1.20)

Published 2025-10-28. Last modified 2026-06-17.