# CVE-2024-39866: Privilege escalation in SINEMA Remote Connect Server

> An attacker with backup encryption key access can upload a malicious backup to create an administrative user, escalating privileges on the server.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jul 2024
- **Updated:** 27 Aug 2025
- **Also known as:** GHSA-cvp3-wg3p-vm94

## What is CVE-2024-39866?

CVE-2024-39866 is a high-severity vulnerability in Siemens Sinema Remote Connect Server, published on 9 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.2 SP1). The affected application allows users to upload encrypted backup files. This could allow an attacker with access to the backup encryption key and with the right to upload backup files to create a user with administrative privileges.

Weakness: CWE-267 (Privilege Defined With Unsafe Actions)

## Which versions are affected by CVE-2024-39866?

It affects 1 product.


Products: Siemens Sinema Remote Connect Server.

## How do I fix CVE-2024-39866?

No fix has been published for CVE-2024-39866 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-39866 being exploited?

There is no known exploitation of CVE-2024-39866 in the wild and no public exploit code.

## Other vulnerabilities in Siemens Sinema Remote Connect Server

- [CVE-2022-32257](https://insights.sbomify.com/CVE-2022-32257/): Missing authorization in SINEMA Remote Connect Server (critical 9.8)
- [CVE-2019-13918](https://insights.sbomify.com/CVE-2019-13918/): Auth bypass in SINEMA Remote Connect Server (critical 9.8)
- [CVE-2024-39872](https://insights.sbomify.com/CVE-2024-39872/): Privilege escalation in SINEMA Remote Connect Server (critical 9.3)
- [CVE-2022-32251](https://insights.sbomify.com/CVE-2022-32251/): Missing authorization in SINEMA Remote Connect Server (high 8.8)
- [CVE-2022-32262](https://insights.sbomify.com/CVE-2022-32262/): Command injection in SINEMA Remote Connect Server (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-39866 and fix it if it is affected.

What it is: CVE-2024-39866 is a high-severity vulnerability in Siemens Sinema Remote Connect Server, published on 9 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-39866 in the wild and no public exploit code.

Affected product: Siemens Sinema Remote Connect Server. 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-2024-39866/ (Markdown: https://insights.sbomify.com/CVE-2024-39866/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-39866
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-39866
- OSV: https://osv.dev/vulnerability/CVE-2024-39866

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-39866/
Summaries are generated and may contain mistakes; the official description above is the record.