# CVE-2023-23585: Server DoS due to heap overflow

> A heap overflow in Honeywell Experion allows attackers to cause a denial of service via crafted messages, impacting industrial control systems.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Jul 2023
- **Updated:** 5 Mar 2025
- **Also known as:** GHSA-g39f-h5w4-xhgq

## What is CVE-2023-23585?

CVE-2023-23585 is a critical memory corruption vulnerability in Honeywell Direct Station, published on 13 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Experion server DoS due to heap overflow occurring during the handling of a specially crafted message for a specific configuration operation. 

See Honeywell Security Notification for recommendations on upgrading and versioning.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2023-23585?

It affects 4 products.


Products: Honeywell Direct Station, Honeywell Engineering Station, Honeywell Experion Server, Honeywell Experion Station.

## How do I fix CVE-2023-23585?

No fix has been published for CVE-2023-23585 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23585 being exploited?

There is no known exploitation of CVE-2023-23585 in the wild and no public exploit code.

## Other vulnerabilities in Honeywell Direct Station

- [CVE-2023-25078](https://insights.sbomify.com/CVE-2023-25078/): DoS due to heap overflow (critical 9.8)
- [CVE-2023-22435](https://insights.sbomify.com/CVE-2023-22435/): Server bad parsing implementation - stack overflow in server::get_db_path_for_driver (high 7.5)
- [CVE-2023-24474](https://insights.sbomify.com/CVE-2023-24474/): Server deserialization missing boundary checks - heap overflow in communication between server and controller (high 7.5)
- [CVE-2023-25948](https://insights.sbomify.com/CVE-2023-25948/): Server Data type confusion - info leak (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23585 and fix it if it is affected.

What it is: CVE-2023-23585 is a critical memory corruption vulnerability in Honeywell Direct Station, published on 13 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-23585 in the wild and no public exploit code.

Affected product: Honeywell Direct Station. 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-2023-23585/ (Markdown: https://insights.sbomify.com/CVE-2023-23585/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23585
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23585
- OSV: https://osv.dev/vulnerability/CVE-2023-23585

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23585/
Summaries are generated and may contain mistakes; the official description above is the record.