# CVE-2025-41753: Path traversal in dynamically created BACnet File Objects

> Unauthenticated remote attackers can traverse directories to read or overwrite arbitrary files on WAGO BACnet controllers, potentially leading to system compromise.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Oct 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-wjph-23gm-wp68

## What is CVE-2025-41753?

CVE-2025-41753 is a critical path traversal vulnerability in WAGO 0750-811x-xxxx-xxxx, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The object name of a dynamically created BACnet File Object is interpreted as a file path without sufficient validation. Because relative paths are not limited to the intended directory, an unauthenticated remote attacker can traverse outside of it and read or overwrite arbitrary files on the device, which may lead to full system compromise.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-41753?


## How do I fix CVE-2025-41753?

No fix has been published for CVE-2025-41753 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-41753 being exploited?

There is no known exploitation of CVE-2025-41753 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-41753 and fix it if it is affected.

What it is: CVE-2025-41753 is a critical path traversal vulnerability in WAGO 0750-811x-xxxx-xxxx, published on 1 Oct 2026. 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-2025-41753 in the wild and no public exploit code.

Affected product: WAGO 0750-811x-xxxx-xxxx. 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-2025-41753/ (Markdown: https://insights.sbomify.com/CVE-2025-41753/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-41753
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-41753
- OSV: https://osv.dev/vulnerability/CVE-2025-41753

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-41753/
Summaries are generated and may contain mistakes; the official description above is the record.