# CVE-2021-43988: ICSA-22-109-03 FANUC ROBOGUIDE Simulation Platform

> Attackers can exploit crafted file naming conventions in FANUC ROBOGUIDE to gain unauthorized access rights and potentially read sensitive data.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 20 Apr 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-rvh3-5fx9-6v6c

## What is CVE-2021-43988?

CVE-2021-43988 is a medium-severity path traversal vulnerability in FANUC ROBOGUIDE, published on 20 Apr 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The affected product is vulnerable to a network-based attack by threat actors utilizing crafted naming conventions of files to gain unauthorized access rights.

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

## Which versions are affected by CVE-2021-43988?

It affects 1 product.


Products: Fanuc Roboguide.

## How do I fix CVE-2021-43988?

No fix has been published for CVE-2021-43988 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-43988 being exploited?

There is no known exploitation of CVE-2021-43988 in the wild and no public exploit code.

## Other vulnerabilities in FANUC ROBOGUIDE

- [CVE-2021-43933](https://insights.sbomify.com/CVE-2021-43933/): ICSA-22-109-03 FANUC ROBOGUIDE Simulation Platform (medium 6.1)
- [CVE-2021-43990](https://insights.sbomify.com/CVE-2021-43990/): ICSA-22-109-03 FANUC ROBOGUIDE Simulation Platform (medium 6.1)
- [CVE-2021-38483](https://insights.sbomify.com/CVE-2021-38483/): ICSA-22-109-03 FANUC ROBOGUIDE Simulation Platform (medium 6.0)
- [CVE-2021-43986](https://insights.sbomify.com/CVE-2021-43986/): ICSA-22-109-03 FANUC ROBOGUIDE Simulation Platform (medium 6.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-43988 and fix it if it is affected.

What it is: CVE-2021-43988 is a medium-severity path traversal vulnerability in FANUC ROBOGUIDE, published on 20 Apr 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-43988 in the wild and no public exploit code.

Affected product: FANUC ROBOGUIDE. 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-2021-43988/ (Markdown: https://insights.sbomify.com/CVE-2021-43988/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-43988
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-43988
- OSV: https://osv.dev/vulnerability/CVE-2021-43988

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-43988/
Summaries are generated and may contain mistakes; the official description above is the record.