PatchTheCVECVE-2020-14514: All trailer Power Line Communications are affected
CVE-2020-14514 is a medium-severity flaw (CVSS 4.3) affecting power line communications. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
All trailer Power Line Communications are affected. PLC bus traffic can be sniffed reliably via an active antenna up to 6 feet away. Further distances are also possible, subject to environmental conditions and receiver improvements.
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Adjacent network |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 60%) |
| CISA exploited list | No |
| Weakness | CWE-201 |
| Published | 2020-09-01 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-14514?
power line communications: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-14514 being exploited?
CVE-2020-14514 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-14514 affect?
CVE-2020-14514 affects power line communications. Severity is medium (CVSS 4.3). All trailer Power Line Communications are affected. PLC bus traffic can be sniffed reliably via an active antenna up to 6 feet away. Further distances are also possible, subject to environmental conditions and receiver improvements.
How urgent is CVE-2020-14514?
Priority 25/100. No elevated risk signals yet.