CVE-2025-12477 Server Version Disclosure

What is CVE-2025-12477?

CVE-2025-12477 is a critical vulnerability in Azure Access Technology BLU-IC2, published on 29 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Server Version Disclosure.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5 .

Weakness: CWE-306

Which versions are affected by CVE-2025-12477?

It affects 2 products.

Products include Azure-Access Blu-Ic2 Firmware, Azure-Access Blu-Ic4 Firmware.

How do I fix CVE-2025-12477?

No fix has been published for CVE-2025-12477 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-12477 being exploited?

There is no known exploitation of CVE-2025-12477 in the wild and no public exploit code.

Other vulnerabilities in Azure Access Technology BLU-IC2

• CVE-2025-12599 Multiple Devices are Sharing the Same Secrets for SDKSocket (TCP/5000) Critical 10.0
• CVE-2025-12600 Web UI Malfunction Critical 10.0
• CVE-2025-12601 Denial of Service Due to SlowLoris Critical 10.0
• CVE-2025-12553 Server Certificate Verification Disabled Critical 10.0
• CVE-2025-12515 Systemic Internal Server Errors - HTTP 500 Response Critical 10.0

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-rfc4-43m5-c2h6.