CVE-2025-63210 Auth bypass in n/a

Critical 9.8 Published Updated

Attackers can bypass authentication on Newtec Celox UHD devices by forging login responses, gaining Superuser or Operator access without valid credentials.

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-2025-63210?

CVE-2025-63210 is a critical authentication bypass vulnerability in n/a, published on 19 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Newtec Celox UHD (models: CELOXA504, CELOXA820) running firmware version celox-21.6.13 is vulnerable to an authentication bypass. An attacker can exploit this issue by modifying intercepted responses from the /celoxservice endpoint. By injecting a forged response body during the loginWithUserName flow, the attacker can gain Superuser or Operator access without providing valid credentials.

Weakness: CWE-303, CWE-302, CWE-287

Which versions are affected by CVE-2025-63210?

It affects 2 products.

Products include Newtec Celoxa504 Firmware, Newtec Celoxa820 Firmware.

How do I fix CVE-2025-63210?

No fix has been published for CVE-2025-63210 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-63210 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63210 exists.

Sources

Also known as GHSA-m3w6-c4j9-5c65.

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