Default and unremovable support credentials (user:nwk password:nwk2) allow attackers to…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-798.
Summary
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, which bear some similarity to code, but they are not arbitrary and do not allow admin-level control of a machine
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:lutron:stanza_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Lutron |
| cpe:2.3:h:lutron:stanza:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lutron |
| cpe:2.3:o:lutron:radiora_2_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Lutron |
| cpe:2.3:h:lutron:radiora_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lutron |
| cpe:2.3:o:lutron:homeworks_qs_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Lutron |
| cpe:2.3:h:lutron:homeworks_qs:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lutron |
- cpe:2.3:o:lutron:stanza_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Lutron
- cpe:2.3:h:lutron:stanza:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lutron
- cpe:2.3:o:lutron:radiora_2_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Lutron
- cpe:2.3:h:lutron:radiora_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lutron
- cpe:2.3:o:lutron:homeworks_qs_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Lutron
- cpe:2.3:h:lutron:homeworks_qs:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lutron
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-11681
- 2026-10-03 Alias added: GHSA-pgqh-j5f3-p3cf
References
More Lutron Homeworks Qs Firmware vulnerabilities
- TI-2018-08349 Default and unremovable support credentials allow attackers to gain total super user… CVSS 3.1CRITICAL 9.8
- TI-2018-08317 Default and unremovable support credentials (user:lutron password:integration) allow… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2018-11681 · CVE Program
- CVE-2018-11681 · NVD
- FIRST EPSS
- GHSA-pgqh-j5f3-p3cf · GitHub Advisory Database · CC BY 4.0
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