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VulnerabilityPublished

CVE-2025-63210: Newtec Celox UHD · Improper Authentication

Source CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
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:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Nov 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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.

References

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