# CVE-2026-27843: SenseLive X3050 Missing authentication for critical function

> Attackers can modify critical settings without authentication, causing persistent lockouts and denial of service for the gateway and connected systems.

- **Severity:** Critical 9.2 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Apr 2026
- **Updated:** 24 Apr 2026
- **Also known as:** GHSA-7pfm-4rh7-6vp4

## What is CVE-2026-27843?

CVE-2026-27843 is a critical missing authorization vulnerability in SenseLive X3050, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-27843?

It affects 1 product.


Products: Senselive X3500 Firmware.

## How do I fix CVE-2026-27843?

No fix has been published for CVE-2026-27843 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-27843 being exploited?

There is no known exploitation of CVE-2026-27843 in the wild and no public exploit code.

## Other vulnerabilities in SenseLive X3050

- [CVE-2026-40620](https://insights.sbomify.com/CVE-2026-40620/): SenseLive X3050 Missing authentication for critical function (critical 9.3)
- [CVE-2026-35503](https://insights.sbomify.com/CVE-2026-35503/): SenseLive X3050 Use of Hard-coded Credentials (critical 9.3)
- [CVE-2026-39462](https://insights.sbomify.com/CVE-2026-39462/): SenseLive X3050 Insufficiently Protected Credentials (critical 9.3)
- [CVE-2026-40630](https://insights.sbomify.com/CVE-2026-40630/): SenseLive X3050 Authentication bypass using an alternate path or channel (critical 9.3)
- [CVE-2026-35064](https://insights.sbomify.com/CVE-2026-35064/): SenseLive X3050 Missing authentication for critical function (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-27843 and fix it if it is affected.

What it is: CVE-2026-27843 is a critical missing authorization vulnerability in SenseLive X3050, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-27843 in the wild and no public exploit code.

Affected product: SenseLive X3050. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-27843/ (Markdown: https://insights.sbomify.com/CVE-2026-27843/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-27843
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-27843
- OSV: https://osv.dev/vulnerability/CVE-2026-27843

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-27843/
Summaries are generated and may contain mistakes; the official description above is the record.