# CVE-2020-28209: Privilege escalation in EcoStruxure Building Operation Enterprise Server installer V1.9 - V3.1 and Enterprise Central installer V2.0 - V3.1

> Local attackers can escalate privileges via unquoted search paths if the server is installed in a writable directory.

- **Severity:** High 7.0 (`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Nov 2020
- **Updated:** 28 May 2026
- **Also known as:** GHSA-v6vj-vcw7-qf3c

## What is CVE-2020-28209?

CVE-2020-28209 is a high-severity vulnerability in EcoStruxure Building Operation Enterprise Server installer V1.9 - V3.1 and Enterprise Central installer V2.0 - V3.1, published on 19 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A CWE-428 Windows Unquoted Search Path vulnerability exists in EcoStruxure Building Operation Enterprise Server installer V1.9 - V3.1 and Enterprise Central installer V2.0 - V3.1 that could cause any local Windows user who has write permission on at least one of the subfolders of the Connect Agent service binary path, being able to gain the privilege of the user who started the service. By default, the Enterprise Server and Enterprise Central is always installed at a location requiring Administrator privileges so the vulnerability is only valid if the application has been installed on a non-secure location.

Weakness: CWE-428 (Unquoted Search Path or Element)

## Which versions are affected by CVE-2020-28209?

It affects 1 product.


Products: Schneider-Electric Enterprise Server Installer.

## How do I fix CVE-2020-28209?

No fix has been published for CVE-2020-28209 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-28209 being exploited?

There is no known exploitation of CVE-2020-28209 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-28209 and fix it if it is affected.

What it is: CVE-2020-28209 is a high-severity vulnerability in EcoStruxure Building Operation Enterprise Server installer V1.9 - V3.1 and Enterprise Central installer V2.0 - V3.1, published on 19 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-28209 in the wild and no public exploit code.

Affected product: EcoStruxure Building Operation Enterprise Server installer V1.9 - V3.1 and Enterprise Central installer V2.0 - V3.1. 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-2020-28209/ (Markdown: https://insights.sbomify.com/CVE-2020-28209/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-28209
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-28209
- OSV: https://osv.dev/vulnerability/CVE-2020-28209

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-28209/
Summaries are generated and may contain mistakes; the official description above is the record.