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.
Scores
CVSS v3
9.8
EPSS
0.0014
EPSS Percentile
33.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-302
CWE-287
CWE-303
Status
published
Products (2)
newtec/celoxa504_firmware
celox-21.6.13
newtec/celoxa820_firmware
celox-21.6.13
Published
Nov 19, 2025
Tracked Since
Feb 18, 2026