CVE-2022-25922
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 · uneditedPower Line Communications PLC4TRUCKS J2497 trailer brake controllers implement diagnostic functions which can be invoked by replaying J2497 messages. There is no authentication or authorization for these functions.
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 · moderate confidenceThe PLC4TRUCKS J2497 trailer brake controllers have diagnostic functions that can be invoked by replaying J2497 protocol messages without any authentication or authorization checks, allowing unauthorized parties to interact with safety-critical brake control systems.
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 data= j2497CVSS 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
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.
-
Identify the installed firmware versionLocate system information or firmware version file on the PLC4TRUCKS device, or access the device's diagnostic interface to retrieve the firmware version identifier. Compare against 'j2497' as the affected version.Affected if The firmware version is j2497 (exactly as listed in affected products)
-
Determine if the J2497 protocol interface is activeCheck if the device exposes a network service or serial interface that processes J2497 protocol messages. This may be a TCP/UDP port, CAN bus interface, or serial connection used for truck trailer communication.Affected if The J2497 protocol service is running and accessible on any network interface
-
Verify if diagnostic functions require authenticationAttempt to invoke a diagnostic command through the J2497 interface without providing any credentials, or examine the protocol implementation/configuration for authentication/authorization mechanisms.Affected if Diagnostic commands can be invoked without any authentication or authorization being enforced
A system is affected if it runs Hegemonelectronics Plc4trucks Firmware version j2497 AND has the J2497 protocol interface exposed AND allows diagnostic function execution without authentication.
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 dataImplement message authentication and authorization for diagnostic functions in the J2497 protocol implementation, and consider network-level access controls to limit exposure of the PLC4TRUCKS interface.
- Consultation12.0 h
- Implementation80.0 h
- Testing60.0 h
- Review / QA24.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $48,192.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-25922 — 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-2022-25922 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data