# CVE-2021-37388: Memory corruption in n/a

> A buffer overflow in the ping_ipaddr parameter allows attackers to crash the webserver or potentially execute remote code on D-Link DIR-615 routers.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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:** 6 Aug 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-fr6j-6vp8-mw6x

## What is CVE-2021-37388?

CVE-2021-37388 is a critical memory corruption vulnerability in n/a, published on 6 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A buffer overflow in D-Link DIR-615 C2 3.03WW. The ping_ipaddr parameter in ping_response.cgi POST request allows an attacker to crash the webserver and might even gain remote code execution.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2021-37388?

It affects 1 product.


Products: Dlink Dir-615 Firmware.

## How do I fix CVE-2021-37388?

No fix has been published for CVE-2021-37388 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37388 being exploited?

There is no known exploitation of CVE-2021-37388 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-42627](https://insights.sbomify.com/CVE-2021-42627/): Missing authorization in n/a (critical 9.8)
- [CVE-2018-15839](https://insights.sbomify.com/CVE-2018-15839/): Memory corruption in n/a (critical 9.8)
- [CVE-2019-17525](https://insights.sbomify.com/CVE-2019-17525/): Security feature bypass in n/a (high 8.8)
- [CVE-2026-2151](https://insights.sbomify.com/CVE-2026-2151/): D-Link DIR-615 DMZ Host Feature adv_firewall.php os command injection (high 8.6)
- [CVE-2026-2152](https://insights.sbomify.com/CVE-2026-2152/): D-Link DIR-615 Web Configuration adv_routing.php os command injection (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37388 and fix it if it is affected.

What it is: CVE-2021-37388 is a critical memory corruption vulnerability in n/a, published on 6 Aug 2021. 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-2021-37388 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-2021-37388/ (Markdown: https://insights.sbomify.com/CVE-2021-37388/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37388
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37388
- OSV: https://osv.dev/vulnerability/CVE-2021-37388

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37388/
Summaries are generated and may contain mistakes; the official description above is the record.