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TI-2023-01642 Aliases CVE-2023-1749GHSA-83x8-hvhg-cvg7

Authorization bypass in Nexx Smart Alarm NXAL-100

Priority LOW 29CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

The listed versions of Nexx Smart Home devices lack proper access control when executing actions. An attacker with a valid NexxHome deviceId could send API requests that the affected devices would execute.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00501 43rd 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
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NexxSmart Alarm NXAL-100up to nxal100v-p1-9-1—No fix listedCNA
NexxSmart Plug NXPG-100Wup to nxpg100cv4-0-0—No fix listedCNA
NexxGarage Door Controller NXG-100B, NXG-200up to nxg200v-p3-4-1—No fix listedCNA
  • Smart Alarm NXAL-100 VendorNexx Affected up to nxal100v-p1-9-1 Fixed in — No fix listed CNA
  • Smart Plug NXPG-100W VendorNexx Affected up to nxpg100cv4-0-0 Fixed in — No fix listed CNA
  • Garage Door Controller NXG-100B, NXG-200 VendorNexx Affected up to nxg200v-p3-4-1 Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:getnexx:nxal-100_firmware:*:*:*:*:*:*:*:*up to nxal100v-p1-9-1VulnerableNexx
cpe:2.3:h:getnexx:nxal-100:-:*:*:*:*:*:*:*not specified by NVDRunning onNexx
cpe:2.3:o:getnexx:nxg-100b_firmware:*:*:*:*:*:*:*:*up to nxg100bv-p3-4-1VulnerableNexx
cpe:2.3:h:getnexx:nxg-100b:-:*:*:*:*:*:*:*not specified by NVDRunning onNexx
cpe:2.3:o:getnexx:nxpg-100w_firmware:*:*:*:*:*:*:*:*up to nxpg100cv4-0-0VulnerableNexx
cpe:2.3:h:getnexx:nxpg-100w:-:*:*:*:*:*:*:*not specified by NVDRunning onNexx
cpe:2.3:o:getnexx:nxg-200_firmware:*:*:*:*:*:*:*:*up to nxg200v-p3-4-1VulnerableNexx
cpe:2.3:h:getnexx:nxg-200:-:*:*:*:*:*:*:*not specified by NVDRunning onNexx
  • cpe:2.3:o:getnexx:nxal-100_firmware:*:*:*:*:*:*:*:* Versions up to nxal100v-p1-9-1 Vulnerable ·Nexx
  • cpe:2.3:h:getnexx:nxal-100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Nexx
  • cpe:2.3:o:getnexx:nxg-100b_firmware:*:*:*:*:*:*:*:* Versions up to nxg100bv-p3-4-1 Vulnerable ·Nexx
  • cpe:2.3:h:getnexx:nxg-100b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Nexx
  • cpe:2.3:o:getnexx:nxpg-100w_firmware:*:*:*:*:*:*:*:* Versions up to nxpg100cv4-0-0 Vulnerable ·Nexx
  • cpe:2.3:h:getnexx:nxpg-100w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Nexx
  • cpe:2.3:o:getnexx:nxg-200_firmware:*:*:*:*:*:*:*:* Versions up to nxg200v-p3-4-1 Vulnerable ·Nexx
  • cpe:2.3:h:getnexx:nxg-200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Nexx

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-1749
  2. 2026-10-03 Alias added: GHSA-83x8-hvhg-cvg7

References

Advisory 1

  • TI-2023-01641 Hard-coded credentials in Nexx Smart Alarm NXAL-100 CVSS 3.1CRITICAL 10.0
  • TI-2023-01644 The listed versions of Nexx Smart Home devices use a WebSocket server that does not… CVSS 3.1HIGH 7.5
  • TI-2023-01645 Improper authentication in Nexx Smart Alarm NXAL-100 CVSS 3.1HIGH 8.1
  • TI-2023-01643 Authorization bypass in Nexx Smart Alarm NXAL-100 CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences