CVE-2025-63216
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe Itel DAB Gateway (IDGat build c041640a) is vulnerable to Authentication Bypass due to improper JWT validation across devices. Attackers can reuse a valid JWT token obtained from one device to authenticate and gain administrative access to any other device running the same firmware, even if the passwords and networks are different. This allows full compromise of affected devices.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe Itel DAB Gateway (IDGat build c041640a) contains a critical authentication bypass vulnerability caused by improper JWT token validation. The firmware uses a static or predictable JWT signing secret across all devices, allowing an attacker who obtains a valid token from one device to reuse it to authenticate as administrator to any other device running the same firmware version, regardless of network segmentation or password differences.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Itel DAB Gateway devices on the networkScan network for devices with Itel DAB Gateway or IDGat in device identification, or locate physical Itel DAB Gateway hardware units in your environmentAffected if Any Itel DAB Gateway (IDGat) device is present in the environment
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Confirm firmware versionAccess device administrative interface and navigate to system information or firmware settings to view the installed firmware build versionAffected if Firmware build matches c041640a or any other version of Itel Idgateway Firmware (all versions are affected)
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Verify JWT authentication is in useInspect network traffic to the device administrative interface or review authentication logs to determine if JWT tokens are used for session managementAffected if JWT-based authentication is enabled and functional on the device
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Check administrative interface exposureReview firewall rules and network segmentation to determine if the device administrative interface is accessible from untrusted network segments or the internetAffected if Administrative interface is exposed to networks outside your trusted internal segment
If you have any Itel DAB Gateway devices running Itel Idgateway Firmware with JWT authentication enabled, your environment is affected by this authentication bypass vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataContact Itel for a firmware update that implements unique per-device JWT secrets and proper token validation. Until a patch is available, isolate affected devices on dedicated network segments and monitor for unauthorized administrative access.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $11,200.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-63216 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-63216 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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