# CVE-2025-39205: Security feature bypass in MicroSCADA X SYS600

> Remote attackers can perform Man-in-the-Middle attacks on MicroSCADA X SYS600 due to improper TLS certificate validation, compromising communication security.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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:** 24 Jun 2025
- **Updated:** 1 Oct 2025
- **Also known as:** GHSA-2c24-v83q-9pwp

## What is CVE-2025-39205?

CVE-2025-39205 is a high-severity vulnerability in Hitachi Energy MicroSCADA X SYS600, published on 24 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability exists in the IEC 61850 in MicroSCADA X SYS600 product. The certificate validation of the TLS protocol allows remote Man-in-the-Middle attack due to missing proper validation.

Weakness: CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2025-39205?

It affects 1 product.


Products: Hitachienergy Microscada X Sys600.

## How do I fix CVE-2025-39205?

No fix has been published for CVE-2025-39205 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-39205 being exploited?

There is no known exploitation of CVE-2025-39205 in the wild and no public exploit code.

## Other vulnerabilities in Hitachi Energy MicroSCADA X SYS600

- [CVE-2026-9853](https://insights.sbomify.com/CVE-2026-9853/): Missing authorization in MicroSCADA SYS600 (high 8.5)
- [CVE-2026-9854](https://insights.sbomify.com/CVE-2026-9854/): Privilege escalation in MicroSCADA SYS600 (high 8.5)
- [CVE-2025-39204](https://insights.sbomify.com/CVE-2025-39204/): Information disclosure in MicroSCADA X SYS600 (high 8.5)
- [CVE-2022-29490](https://insights.sbomify.com/CVE-2022-29490/): Missing authorization in MicroSCADA X SYS600 (high 8.5)
- [CVE-2025-39202](https://insights.sbomify.com/CVE-2025-39202/): Missing authorization in MicroSCADA X SYS600 (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-39205 and fix it if it is affected.

What it is: CVE-2025-39205 is a high-severity vulnerability in Hitachi Energy MicroSCADA X SYS600, published on 24 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-39205 in the wild and no public exploit code.

Affected product: Hitachi Energy MicroSCADA X SYS600. 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-2025-39205/ (Markdown: https://insights.sbomify.com/CVE-2025-39205/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-39205
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-39205
- OSV: https://osv.dev/vulnerability/CVE-2025-39205

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-39205/
Summaries are generated and may contain mistakes; the official description above is the record.