# CVE-2020-27368: Information disclosure in n/a

> An attacker can access directory listings in the login portal of TOTOLINK routers, potentially exposing sensitive file information.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Jan 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-mv68-j39w-7qfq

## What is CVE-2020-27368?

CVE-2020-27368 is a medium-severity vulnerability in n/a, published on 14 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Directory Indexing in Login Portal of Login Portal of TOTOLINK-A702R-V1.0.0-B20161227.1023 allows attacker to access /icons/ directories via GET Parameter.

Weakness: CWE-552 (Files or Directories Accessible to External Parties)

## Which versions are affected by CVE-2020-27368?

It affects 1 product.


Products: Totolink A702r Firmware.

## How do I fix CVE-2020-27368?

No fix has been published for CVE-2020-27368 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-27368 being exploited?

There is no known exploitation of CVE-2020-27368 in the wild and no public exploit code.

Public exploit code:

- TOTOLINK-A702R-V1.0.0-B20161227.1023 Directory Indexing Vulnerability (github_poc): https://github.com/swzhouu/CVE-2020-27368

## Other vulnerabilities in n/a

- [CVE-2025-9779](https://insights.sbomify.com/CVE-2025-9779/): TOTOLINK A702R formFilter sub_4162DC buffer overflow (high 8.7)
- [CVE-2025-9780](https://insights.sbomify.com/CVE-2025-9780/): TOTOLINK A702R formIpQoS sub_419BE0 buffer overflow (high 8.7)
- [CVE-2025-9781](https://insights.sbomify.com/CVE-2025-9781/): TOTOLINK A702R formFilter sub_4162DC buffer overflow (high 8.7)
- [CVE-2025-9782](https://insights.sbomify.com/CVE-2025-9782/): TOTOLINK A702R formOneKeyAccessButton sub_4466F8 buffer overflow (high 8.7)
- [CVE-2025-9783](https://insights.sbomify.com/CVE-2025-9783/): TOTOLINK A702R formParentControl sub_418030 buffer overflow (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-27368 and fix it if it is affected.

What it is: CVE-2020-27368 is a medium-severity vulnerability in n/a, published on 14 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-27368 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-2020-27368/ (Markdown: https://insights.sbomify.com/CVE-2020-27368/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-27368
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-27368
- OSV: https://osv.dev/vulnerability/CVE-2020-27368

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-27368/
Summaries are generated and may contain mistakes; the official description above is the record.