PatchTheCVECVE-2020-9550: Rubetek SmartHome 2020 devices use unencrypted 433 MHz communication between controllers and beacons, allowing
CVE-2020-9550 is a critical-severity flaw (CVSS 9.8) affecting smarthome firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Rubetek SmartHome 2020 devices use unencrypted 433 MHz communication between controllers and beacons, allowing an attacker to sniff and spoof beacon requests remotely.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.7% (top 45%) |
| CISA exploited list | No |
| Weakness | CWE-319 |
| Published | 2020-03-04 |
| 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-2020-9550?
smarthome firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-9550 being exploited?
CVE-2020-9550 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-2020-9550 affect?
CVE-2020-9550 affects smarthome firmware. Severity is critical (CVSS 9.8). Rubetek SmartHome 2020 devices use unencrypted 433 MHz communication between controllers and beacons, allowing an attacker to sniff and spoof beacon requests remotely.
How urgent is CVE-2020-9550?
Priority 53/100. Critical severity; Remotely exploitable, no login, no user action