CVE-2025-12601 Denial of Service Due to SlowLoris
Attackers can cause denial of service on BLU-IC2 and BLU-IC4 devices via SlowLoris attacks, requiring firmware upgrades to mitigate.
- 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-2025-12601?
CVE-2025-12601 is a critical denial of service vulnerability in Azure Access Technology BLU-IC2, published on 1 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Denial of Service Due to SlowLoris.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.
Weakness: CWE-730
Which versions are affected by CVE-2025-12601?
It affects 2 products.
Products include Azure-Access Blu-Ic2 Firmware, Azure-Access Blu-Ic4 Firmware.
How do I fix CVE-2025-12601?
No fix has been published for CVE-2025-12601 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-12601 being exploited?
There is no known exploitation of CVE-2025-12601 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)
- CVE-2025-12600 Web UI Malfunction
- CVE-2025-12553 Server Certificate Verification Disabled
- CVE-2025-12515 Systemic Internal Server Errors - HTTP 500 Response
- CVE-2025-12516 Lack of Graceful Error Handling - HTTP 5xx Error
Sources
Also known as GHSA-jcph-w2fx-w8j8.