# CVE-2026-30140: Information disclosure in n/a

> Unauthenticated attackers can download the router configuration file to obtain plaintext administrator credentials, enabling remote administrative access.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Mar 2026
- **Updated:** 11 Mar 2026
- **Also known as:** GHSA-24pw-8cqg-3ppr

## What is CVE-2026-30140?

CVE-2026-30140 is a high-severity vulnerability in n/a, published on 9 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An incorrect access control vulnerability exists in Tenda W15E V02.03.01.26_cn. An unauthenticated attacker can access the /cgi-bin/DownloadCfg/RouterCfm.jpg endpoint to download the configuration file containing plaintext administrator credentials, leading to sensitive information disclosure and potential remote administrative access.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-30140?

It affects 1 product.


Products: Tenda W15e Firmware.

## How do I fix CVE-2026-30140?

No fix has been published for CVE-2026-30140 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30140 being exploited?

There is no known exploitation of CVE-2026-30140 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-27061](https://insights.sbomify.com/CVE-2023-27061/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-27063](https://insights.sbomify.com/CVE-2023-27063/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-42058](https://insights.sbomify.com/CVE-2022-42058/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-4115](https://insights.sbomify.com/CVE-2024-4115/): Tenda W15E AddDnsForward formAddDnsForward stack-based overflow (high 8.8)
- [CVE-2024-4116](https://insights.sbomify.com/CVE-2024-4116/): Tenda W15E DelDhcpRule formDelDhcpRule stack-based overflow (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30140 and fix it if it is affected.

What it is: CVE-2026-30140 is a high-severity vulnerability in n/a, published on 9 Mar 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-2026-30140 in the wild and no public exploit code.

Affected product: n/a. 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-2026-30140/ (Markdown: https://insights.sbomify.com/CVE-2026-30140/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30140
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30140
- OSV: https://osv.dev/vulnerability/CVE-2026-30140

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30140/
Summaries are generated and may contain mistakes; the official description above is the record.