# CVE-2016-7820: Memory corruption in TS-WRLA

> An attacker with administrator rights can cause a denial-of-service or execute arbitrary code via a buffer overflow in I-O DATA wireless routers.

- **Severity:** High 7.2 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jun 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-3v99-rpgw-rrch

## What is CVE-2016-7820?

CVE-2016-7820 is a high-severity memory corruption vulnerability in I-O DATA DEVICE, INC. TS-WRLA, published on 9 Jun 2017. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Buffer overflow in I-O DATA DEVICE TS-WRLP firmware version 1.01.02 and earlier and TS-WRLA firmware version 1.01.02 and earlier allows an attacker with administrator rights to cause a denial-of-service (DoS) or execute arbitrary code via unspecified vectors.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2016-7820?

It affects 2 products.


Products: Iodata Ts-Wrla Firmware, Iodata Ts-Wrlp Firmware.

## How do I fix CVE-2016-7820?

No fix has been published for CVE-2016-7820 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-7820 being exploited?

There is no known exploitation of CVE-2016-7820 in the wild and no public exploit code.

## Other vulnerabilities in I-O DATA DEVICE, INC. TS-WRLA

- [CVE-2018-0661](https://insights.sbomify.com/CVE-2018-0661/): Missing authorization in Multiple I-O DATA network camera products (high 8.8)
- [CVE-2018-0663](https://insights.sbomify.com/CVE-2018-0663/): Hardcoded credentials in Multiple I-O DATA network camera products (high 8.8)
- [CVE-2016-7814](https://insights.sbomify.com/CVE-2016-7814/): Information disclosure in TS-WRLA (high 7.5)
- [CVE-2016-7819](https://insights.sbomify.com/CVE-2016-7819/): Command injection in TS-WRLA (high 7.2)
- [CVE-2018-0662](https://insights.sbomify.com/CVE-2018-0662/): File upload in Multiple I-O DATA network camera products (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-7820 and fix it if it is affected.

What it is: CVE-2016-7820 is a high-severity memory corruption vulnerability in I-O DATA DEVICE, INC. TS-WRLA, published on 9 Jun 2017. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-7820 in the wild and no public exploit code.

Affected product: I-O DATA DEVICE, INC. TS-WRLA. 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-2016-7820/ (Markdown: https://insights.sbomify.com/CVE-2016-7820/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-7820
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-7820
- OSV: https://osv.dev/vulnerability/CVE-2016-7820

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-7820/
Summaries are generated and may contain mistakes; the official description above is the record.