CVE-2025-63210
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductNewtec Celoxa504 Firmware
PublishedNov 19, 2025
First seenNov 19, 2025
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| newtec celoxa504_firmware | celox-21.6.13 | — |
| newtec celoxa820_firmware | celox-21.6.13 | — |
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