PatchTheCVECVE-2018-11681: Default and unremovable support credentials (user:nwk password:nwk2) allow attackers to gain total super user
CVE-2018-11681 is a critical-severity flaw (CVSS 9.8) affecting stanza firmware, radiora 2 firmware, homeworks qs firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Default and unremovable support credentials (user:nwk password:nwk2) allow attackers to gain total super user control of an IoT device through a TELNET session to products using the RadioRA 2 Lutron integration protocol Revision M to Revision Y. NOTE: The vendor disputes this id as not being a vulnerability because what can be done through the ports revolve around controlling lighting, not code execution. A certain set of commands are listed, whi
Why this priority
- Critical severity
- EPSS top 9%: very likely to be exploited
- 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 | 4.2% (top 9%) |
| CISA exploited list | No |
| Weakness | CWE-798 |
| Published | 2018-06-02 |
| 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-2018-11681?
stanza firmware: mitigate or apply the listed mitigation; radiora 2 firmware: mitigate or apply the listed mitigation; homeworks qs firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2018-11681 being exploited?
CVE-2018-11681 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-2018-11681 affect?
CVE-2018-11681 affects stanza firmware, radiora 2 firmware, homeworks qs firmware. Severity is critical (CVSS 9.8). Default and unremovable support credentials (user:nwk password:nwk2) allow attackers to gain total super user control of an IoT device through a TELNET session to products using the RadioRA 2 Lutron integration protocol Revision M to Revisi
How urgent is CVE-2018-11681?
Priority 62/100. Critical severity; EPSS top 9%: very likely to be exploited; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2018-11682 CRITICAL 9.8 MITIGATE MITIGATE Default and unremovable support credentials allow attackers to gain total super user control of an IoT device
- CVE-2018-11629 CRITICAL 9.8 MITIGATE MITIGATE Default and unremovable support credentials (user:lutron password:integration) allow attackers to gain total s