CVE-2025-63217

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

Critical · published November 18, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
47.7
In the wild
Unconfirmed
What it is

🔥 An unguarded entrance allows attackers to waltz into your devices! With the Itel DAB MUX vulnerability (CVE-2025-63217), a single valid JWT token can be a passkey to administrative access, regardless of unique passwords or networks! Think of it as a VIP pass that works at multiple venues. Imagine having a ticket that lets you into any club in town, even if each one has its own dress code and entry rules – that's how this JWT mishap operates across devices! An attacker could exploit this flaw to take complete control over any affected device, leading to unauthorized access to sensitive information, configuration changes, or even disabling the device entirely. This is absolutely devastating and poses a severe risk to users and organizations relying on secure operations!

Put simply

Think of it as a VIP pass that works at multiple venues. Imagine having a ticket that lets you into any club in town, even if each one has its own dress code and entry rules – that's how this JWT mishap operates across devices! The vulnerability exists due to improper validation of JSON Web Tokens (JWTs) in the Itel DAB MUX firmware, allowing reuse of valid tokens across devices, bypassing authentication checks. This means any attacker with a valid token can authenticate and gain administrative control on any device running the same firmware, regardless of individual authentication measures.

What to do

An attacker could exploit this flaw to take complete control over any affected device, leading to unauthorized access to sensitive information, configuration changes, or even disabling the device entirely. This is absolutely devastating and poses a severe risk to users and organizations relying on secure operations! Immediately patch the affected devices to the latest firmware version that addresses this JWT vulnerability. Additionally, implement stricter token validation measures to ensure tokens are only valid for their intended device and session. Regularly audit your device firmware for updates and security patches. You've got this! By taking action now, you'll secure your devices and keep the bad guys at bay! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00594 · 47.7th percentile
Published
2025-11-18T00:00Z
EPSS history
Timeline
  • 18 NOV 00:00Z
    The Itel DAB MUX (IDMUX build c041640a) is vulnerable to Authentication Bypass due to improper JWT validation across devices
    cvelistv5