CVE-2025-63210: Newtec Celox UHD · Improper Authentication
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 19 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
Immediate mitigation steps include implementing strict network segmentation to isolate Newtec Celox UHD devices from untrusted networks and limit access to management interfaces. Deploy network-level protections such as TLS interception prevention, strong firewall rules, and intrusion detection systems to monitor and block suspicious traffic targeting the /celoxservice endpoint. Organizations should conduct thorough network traffic analysis to detect any anomalous modifications or replay attacks during authentication flows. Since no official patches are currently available, coordinate with the vendor for firmware updates or security advisories. Employ multi-factor authentication and restrict administrative access to trusted personnel and devices only. Regularly audit device logs for unauthorized access attempts and consider deploying endpoint detection and response (EDR) solutions on connected management systems. Finally, prepare incident response plans specific to satellite communication device compromise scenarios.
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.