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Vulnerability record · CVE-2026-27843 · published 24 April 2026

CVE-2026-27843: Senselive x3500 firmware missing authentication for critical function vulnerability

Senselive · X3500 Firmware

A vulnerability exists in SenseLive X3050's web management interface that allows critical configuration parameters to be modified without sufficient authentication or server-side validation. By applying unsupported or disruptive values to recovery mechanisms and network settings, an attacker can induce a persistent lockout state. Because the device lacks a physical reset button, recovery requires specialized technical access via the console to perform a factory reset, resulting in a total denial-of-service for the gateway and its connected RS-485 downstream systems.

9.2 CVSS 4.0 Critical EPSS 0.81% · top 45.0% CWE-306 · Missing authentication for critical function
9.2CVSS 4.0 base score
0.81%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

A vulnerability exists in SenseLive X3050's web management interface that allows critical configuration parameters to be modified without sufficient authentication or server-side validation. By applying unsupported or disruptive values to recovery mechanisms and network settings, an attacker can induce a persistent lockout state. Because the device lacks a physical reset button, recovery requires specialized technical access via the console to perform a factory reset, resulting in a total denial-of-service for the gateway and its connected RS-485 downstream systems.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-111-12.json Third Party Advisory
https://senselive.io/contact Product
https://www.cisa.gov/news-events/ics-advisories/icsa-26-111-12 US Government Resource

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2026-40630Senselive x3500 firmware authentication bypass via alternate path vulnerabilityA vulnerability in  SenseLive X3050’s web management interface allows unauthorized access to certain configuration endpoints due to improper access c…EPSS 0.89%9.3CVE-2026-35503Senselive x3500 firmware hard-coded credentials vulnerabilityA vulnerability in SenseLive X3050’s web management interface allows authentication logic to be performed entirely on the client side, relying on har…EPSS 0.84%9.3CVE-2026-39462Senselive x3500 firmware insufficiently protected credentials vulnerabilityA vulnerability exists in SenseLive X3050’s web management interface in which password updates are not reliably applied due to improper handling of c…EPSS 0.69%9.3CVE-2026-40620Senselive x3500 firmware missing authentication for critical function vulnerabilityA vulnerability in SenseLive X3050’s embedded management service allows full administrative control to be established without any form of authenticat…EPSS 0.83%8.7CVE-2026-35064Senselive x3500 firmware missing authentication for critical function vulnerabilityA vulnerability in SenseLive X3050’s management ecosystem allows unauthenticated discovery of deployed units through the vendor’s management protocol…EPSS 0.63%8.4CVE-2026-27841Senselive x3500 firmware cross-site request forgery vulnerabilityA vulnerability in SenseLive X3050's web management interface allows state-changing operations to be triggered without proper Cross-Site Request Forg…EPSS 0.25%7.2CVE-2026-40623Senselive x3500 firmware missing authorization vulnerabilityA vulnerability in SenseLive X3050's web management interface allows critical system and network configuration parameters to be modified without suff…EPSS 0.59%6.9CVE-2026-40431Senselive x3500 firmware cleartext transmission vulnerabilityA vulnerability exists in SenseLive X3050’s web management interface due to its reliance on unencrypted HTTP for all administrative communication. Be…EPSS 0.31%

Source: NIST National Vulnerability Database (record CVE-2026-27843), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.