CVE-2025-63216

The Itel DAB Gateway (IDGat build c041640a) is vulnerable to Authentication Bypass due to improper JWT validation across devices

Critical · published November 18, 2025

CVSS v3.1
10.0
EPSS
1%
Percentile
54.9
In the wild
Unconfirmed
What it is

🚨 An authentication bypass vulnerability lets attackers use a valid JWT from one device to access any other device running the same firmware! 🔥 Think of it like a VIP concert pass that works for multiple venues — if someone gets hold of that pass, they can waltz into any concert without a ticket, no matter how different the security checks are at each entrance. This means an attacker could gain full control over affected devices, manage settings, steal data, or disrupt services. With a CVSS score of 10, this vulnerability poses an absolutely devastating risk for anyone using the flawed firmware, leaving doorways wide open for malicious activity.

Put simply

Think of it like a VIP concert pass that works for multiple venues — if someone gets hold of that pass, they can waltz into any concert without a ticket, no matter how different the security checks are at each entrance. The issue arises from improper validation of JSON Web Tokens (JWTs): a valid token from one device is accepted by any other device, allowing unauthorized administrative access across different networks and passwords.

What to do

This means an attacker could gain full control over affected devices, manage settings, steal data, or disrupt services. With a CVSS score of 10, this vulnerability poses an absolutely devastating risk for anyone using the flawed firmware, leaving doorways wide open for malicious activity. Update the Itel DAB Gateway firmware to the latest version immediately. Implement strong validation checks for JWTs to ensure tokens are verified against the correct device context. Regularly audit devices for unauthorized access attempts. You've got this! By following these steps, you'll shore up your defenses and secure your network in no time! 🛡️

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00764 · 54.9th percentile
Published
2025-11-18T00:00Z
EPSS history
Timeline
  • 18 NOV 00:00Z
    The Itel DAB Gateway (IDGat build c041640a) is vulnerable to Authentication Bypass due to improper JWT validation across devices
    cvelistv5