CVE-2025-12104 Incorrect Content-Type Header

Critical 10.0 Published Updated

Outdated UI dependencies with incorrect Content-Type headers may allow exploitation in BLU-IC2 and BLU-IC4 industrial controllers.

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-2025-12104?

CVE-2025-12104 is a critical vulnerability in Azure Access Technology BLU-IC2, published on 23 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Outdated and Vulnerable UI Dependencies might potentially lead to exploitation.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.

Weakness: CWE-1104

Which versions are affected by CVE-2025-12104?

It affects 2 products.

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

How do I fix CVE-2025-12104?

No fix has been published for CVE-2025-12104 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-12104 being exploited?

There is no known exploitation of CVE-2025-12104 in the wild and no public exploit code.

Sources

Also known as GHSA-fg22-jf8j-5mrr.

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