CVE-2025-12478 Non-Compliant TLS Configuration

Critical 10.0 Published Updated

An attacker can exploit non-compliant TLS configurations in Azure Access BLU-IC devices to bypass security controls.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-12478?

CVE-2025-12478 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

Non-Compliant TLS Configuration.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5 .

Weakness: CWE-326

Which versions are affected by CVE-2025-12478?

It affects 2 products.

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

How do I fix CVE-2025-12478?

No fix has been published for CVE-2025-12478 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-12478 being exploited?

There is no known exploitation of CVE-2025-12478 in the wild and no public exploit code.

Sources

Also known as GHSA-vcv8-7fr8-7xqg.

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