CVE-2023-1748

published 2023-04-04 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23969

cvss: 9.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 0; none known

The listed versions of Nexx Smart Home devices use hard-coded credentials. An attacker with unauthenticated access to the Nexx Home mobile application or the affected firmware could view the credentials and access the MQ Telemetry Server (MQTT) server and the ability to remotely control garage doors or smart plugs for any customer.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-094-01 updated 2023-04-04 cvss 9.3

Nexx Smart Home Device

Nexx Garage Door Controller (NXG-100B, NXG-200) <= nxg200v-p3-4-1 Nexx Smart Alarm (NXAL-100) <= nxal100v-p1-9-1and Nexx Smart Plug (NXPG-100W) <= nxpg100cv4-0-0
affected: vendor fix getnexx.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 21 mo ago (2025-01-16)

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
NVD	3.1	10.0	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Nexx Smart Alarm NXAL-100
Nexx Smart Plug NXPG-100W
Nexx Garage Door Controller NXG-100B, NXG-200

Classification

Weakness

CWE-798 Use of Hard-coded Credentials

References

cisa.gov /news-events/ics-advisories/icsa-23-094-01
third-party-advisory, us-government-resource

Sources

CVE List CVE-2023-1748
NVD CVE-2023-1748

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary