Connected IO v2.1.0 and prior has a misconfiguration in their MQTT broker used for…
Priority MEDIUM 50Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Connected IO v2.1.0 and prior has a misconfiguration in their MQTT broker used for management and device communication, which allows devices to connect to the broker and issue commands to other device, impersonating Connected IO management platform and sending commands to all of Connected IO's devices.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00692 53rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:connectedio:er2000t-vz-cat1_firmware:*:*:*:*:*:*:*:* | up to 2.1.0 | Vulnerable | Connectedio |
| cpe:2.3:h:connectedio:er2000t-vz-cat1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Connectedio |
- cpe:2.3:o:connectedio:er2000t-vz-cat1_firmware:*:*:*:*:*:*:*:* Versions up to 2.1.0 Vulnerable ·Connectedio
- cpe:2.3:h:connectedio:er2000t-vz-cat1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Connectedio
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-33379
- 2026-10-03 Alias added: GHSA-426p-c3p2-xqhp
References
Sources
- CVE-2023-33379 · CVE Program
- CVE-2023-33379 · NVD
- FIRST EPSS
- GHSA-426p-c3p2-xqhp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences