# CVE-2020-19318: Memory corruption in n/a

> Authorized attackers can execute arbitrary code on D-Link DIR-605L routers via a buffer overflow in the webserver service.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Sep 2023
- **Updated:** 26 Sep 2024
- **Also known as:** GHSA-xx63-954p-r9m7

## What is CVE-2020-19318?

CVE-2020-19318 is a high-severity memory corruption vulnerability in Dlink Dir-605l Firmware, published on 11 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Buffer Overflow vulnerability in D-Link DIR-605L, hardware version AX, firmware version 1.17beta and below, allows authorized attackers execute arbitrary code via sending crafted data to the webserver service program.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2020-19318?

It affects 1 product.


Products: Dlink Dir-605l Firmware.

## How do I fix CVE-2020-19318?

No fix has been published for CVE-2020-19318 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-19318 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-19318 exists.

## Other vulnerabilities in Dlink Dir-605l Firmware

- [CVE-2021-40655](https://insights.sbomify.com/CVE-2021-40655/): D-Link DIR-605 Router Information Disclosure (high 7.5, exploited in the wild)
- [CVE-2026-42373](https://insights.sbomify.com/CVE-2026-42373/): D-Link DIR-605L B2 Hardcoded Telnet Backdoor Credentials (critical 9.8)
- [CVE-2023-29961](https://insights.sbomify.com/CVE-2023-29961/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-24348](https://insights.sbomify.com/CVE-2023-24348/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-24349](https://insights.sbomify.com/CVE-2023-24349/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-19318 and fix it if it is affected.

What it is: CVE-2020-19318 is a high-severity memory corruption vulnerability in Dlink Dir-605l Firmware, published on 11 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-19318 exists.

Affected product: Dlink Dir-605l Firmware. 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-2020-19318/ (Markdown: https://insights.sbomify.com/CVE-2020-19318/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-19318
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-19318
- OSV: https://osv.dev/vulnerability/CVE-2020-19318

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-19318/
Summaries are generated and may contain mistakes; the official description above is the record.