# CVE-2026-9852: Code injection in MicroSCADA SYS600

> Attackers can inject malicious formulas into CSV exports to modify data or execute code on user machines via log injection in MicroSCADA SYS600.

- **Severity:** Medium 4.6 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Sep 2026
- **Updated:** 3 Sep 2026
- **Also known as:** GHSA-5ph9-h7vg-rh4m

## What is CVE-2026-9852?

CVE-2026-9852 is a medium-severity code injection vulnerability in Hitachi Energy MicroSCADA SYS600, published on 3 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A CSV injection vulnerability exists in SYS600. Injected malicious formulas can add or modify data to the spreadsheet, insert links, exfiltrate data, and in some cases, depending on how the user has their environment configured, execute malicious code on the user’s machine. To exploit this issue attackers would need a way to create arbitrary log messages. This could be achieved through normal functionality via SCIL scripts, a log injection vulnerability, or via the SYS600 broker. This vulnerability affects all Windows users regardless of their privilege level who can run the Notify service and export the log.

Weakness: CWE-1236 (Improper Neutralization of Formula Elements in a CSV File)

## Which versions are affected by CVE-2026-9852?

It affects 1 product.


Products: Hitachienergy Microscada X Sys600.

## How do I fix CVE-2026-9852?

No fix has been published for CVE-2026-9852 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9852 being exploited?

There is no known exploitation of CVE-2026-9852 in the wild and no public exploit code.

## Other vulnerabilities in Hitachi Energy MicroSCADA 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-2026-9852 and fix it if it is affected.

What it is: CVE-2026-9852 is a medium-severity code injection vulnerability in Hitachi Energy MicroSCADA SYS600, published on 3 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-9852 in the wild and no public exploit code.

Affected product: Hitachi Energy MicroSCADA 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-2026-9852/ (Markdown: https://insights.sbomify.com/CVE-2026-9852/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9852
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9852
- OSV: https://osv.dev/vulnerability/CVE-2026-9852

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-9852/
Summaries are generated and may contain mistakes; the official description above is the record.