# CVE-2025-58321: DIALink - Directory Traversal Authentication Bypass Vulnerability

> Attackers can bypass authentication and access restricted files via directory traversal in Delta Electronics DIALink.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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:** 11 Sep 2025
- **Updated:** 11 Sep 2025
- **Also known as:** GHSA-9w85-hprg-c8rx

## What is CVE-2025-58321?

CVE-2025-58321 is a critical path traversal vulnerability in Delta Electronics DIALink, published on 11 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Delta Electronics DIALink has an Directory Traversal Authentication Bypass Vulnerability.

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

## Which versions are affected by CVE-2025-58321?

It affects 1 product.


Products: Deltaww Dialink.

## How do I fix CVE-2025-58321?

No fix has been published for CVE-2025-58321 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-58321 being exploited?

There is no known exploitation of CVE-2025-58321 in the wild and no public exploit code.

## Other vulnerabilities in Delta Electronics DIALink

- [CVE-2022-2660](https://insights.sbomify.com/CVE-2022-2660/): Hardcoded credentials in Industrial Automation DIALink (critical 9.8)
- [CVE-2021-38418](https://insights.sbomify.com/CVE-2021-38418/): Delta Electronics DIALink (high 8.8)
- [CVE-2022-2969](https://insights.sbomify.com/CVE-2022-2969/): ICSA-22-307-03 Delta Industrial Automation DIALink Path traversal (high 8.1)
- [CVE-2021-38416](https://insights.sbomify.com/CVE-2021-38416/): Delta Electronics DIALink (high 7.8)
- [CVE-2021-38420](https://insights.sbomify.com/CVE-2021-38420/): Delta Electronics DIALink (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-58321 and fix it if it is affected.

What it is: CVE-2025-58321 is a critical path traversal vulnerability in Delta Electronics DIALink, published on 11 Sep 2025. 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-2025-58321 in the wild and no public exploit code.

Affected product: Delta Electronics DIALink. 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-2025-58321/ (Markdown: https://insights.sbomify.com/CVE-2025-58321/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-58321
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-58321
- OSV: https://osv.dev/vulnerability/CVE-2025-58321

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-58321/
Summaries are generated and may contain mistakes; the official description above is the record.