CVE-2022-25922ICSA-22-063-01 Missing Authentication for Critical Function in Trailer Power Line Communications (PLC) J2497
- 6.1MediumCVSS base score
- 1.2%Exploitation in 30 daysEPSS · top 31% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Power 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.
Timeline
ID reserved
By icscert
- 6 days later
· 6 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| icscertCNA (assigner) | 3.1 | Medium6.1 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.2% · top 31% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Affected products
Power Line Communications · PLC4TRUCKS
- affected J2497
What to do
Workaround: The vulnerable technology, J2497, has been fielded since 2001 and the service lifetime of trailers is 15 to 30 years. For new equipment, the industry should consider dropping all J2497 features except for backwards-compatibility with LAMP ON detection only. For trailer equipment this means migrating all diagnostics to whatever newer trailer buses are established as the norm. For tractor equipment this means removing support for reception of any J2497 message other than LAMP messages and protecting the backwards-compatible trailers from attack. NMFTA has published detailed information about how to mitigate these issues in the following ways: Install a LAMP ON firewall for each ECU Use a LAMP detect circuit LAMP ON sender with each trailer Change addresses dynamically on each tractor in response to detecting a transmitter on its current address. Install RF chokes on each trailer between chassis ground and wiring ground Load with LAMP keyhole signal on each tractor Flood with jamming signal on each tractor Please see the publication from the NMFTA for additional details on these and other solutions.
References
References1
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-063-01 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-30505 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-25922)Record last updated .