# CVE-2026-0611: Spacelabs Healthcare Sentinel 10.5.x < 11.6.0 Unauthenticated RCE via .NET Remoting

> Unauthenticated attackers can achieve remote code execution by writing webshells via exposed .NET Remoting endpoints in Spacelabs Healthcare Sentinel.

- **Severity:** Critical 9.2 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Jun 2026
- **Updated:** 2 Jun 2026
- **Also known as:** GHSA-344f-p6q5-rw6q

## What is CVE-2026-0611?

CVE-2026-0611 is a critical code injection vulnerability in Spacelabs Healthcare Sentinel, published on 2 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Spacelabs Healthcare Sentinel versions 10.5.x and higher and 11.x.x before 11.6.0 contain an unauthenticated remote code execution vulnerability through a deprecated .NET Remoting HTTP channel exposed on port 8989 that allows attackers to perform arbitrary file read and write operations by supplying valid .NET URI endpoints. Attackers can write ASPX webshells to the IIS wwwroot directory to achieve unauthenticated remote code execution on the system. Port 8989 is not exposed in a default Sentinel installation; exploitation requires that the .NET Remoting port has been explicitly made network-accessible through deliberate configuration or network policy changes.

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

## Which versions are affected by CVE-2026-0611?


## How do I fix CVE-2026-0611?

No fix has been published for CVE-2026-0611 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0611 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-0611 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0611 and fix it if it is affected.

What it is: CVE-2026-0611 is a critical code injection vulnerability in Spacelabs Healthcare Sentinel, published on 2 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-0611 exists.

Affected product: Spacelabs Healthcare Sentinel. 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-2026-0611/ (Markdown: https://insights.sbomify.com/CVE-2026-0611/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0611
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0611
- OSV: https://osv.dev/vulnerability/CVE-2026-0611

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-0611/
Summaries are generated and may contain mistakes; the official description above is the record.