PatchTheCVECVE-2025-63210: The Newtec Celox UHD (models: CELOXA504, CELOXA820) running firmware version celox-21.6.13 is vulnerable to an
CVE-2025-63210 is a critical-severity flaw (CVSS 9.8) affecting celoxa504 firmware, celoxa820 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Public exploit reference
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Write-up: github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-63210_Newtec%20Celox%2
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-63210?
celoxa504 firmware: mitigate or apply the listed mitigation; celoxa820 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-63210 being exploited?
CVE-2025-63210 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-63210 affect?
CVE-2025-63210 affects celoxa504 firmware, celoxa820 firmware. Severity is critical (CVSS 9.8). 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
How urgent is CVE-2025-63210?
Priority 59/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action