# CVE-2024-9783: D-Link DIR-619L B1 formLogDnsquery buffer overflow

> Remote attackers can trigger a buffer overflow in the D-Link DIR-619L router via the formLogDnsquery function, potentially leading to arbitrary code execution.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **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:** 10 Oct 2024
- **Updated:** 10 Oct 2024
- **Also known as:** GHSA-jmg8-f24j-g3h6

## What is CVE-2024-9783?

CVE-2024-9783 is a high-severity memory corruption vulnerability in Dlink Dir-619l Firmware, published on 10 Oct 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in D-Link DIR-619L B1 2.06. It has been rated as critical. This issue affects the function formLogDnsquery of the file /goform/formLogDnsquery. The manipulation of the argument curTime leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

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

## Which versions are affected by CVE-2024-9783?

It affects 1 product.


Products: Dlink Dir-619l Firmware.

## How do I fix CVE-2024-9783?

No fix has been published for CVE-2024-9783 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-9783 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-9783 exists.

## Other vulnerabilities in Dlink Dir-619l Firmware

- [CVE-2025-55599](https://insights.sbomify.com/CVE-2025-55599/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-55602](https://insights.sbomify.com/CVE-2025-55602/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-55611](https://insights.sbomify.com/CVE-2025-55611/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-43869](https://insights.sbomify.com/CVE-2023-43869/): Memory corruption in n/a (critical 9.8)
- [CVE-2020-19319](https://insights.sbomify.com/CVE-2020-19319/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-9783 and fix it if it is affected.

What it is: CVE-2024-9783 is a high-severity memory corruption vulnerability in Dlink Dir-619l Firmware, published on 10 Oct 2024. 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-2024-9783 exists.

Affected product: Dlink Dir-619l 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-2024-9783/ (Markdown: https://insights.sbomify.com/CVE-2024-9783/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-9783
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-9783
- OSV: https://osv.dev/vulnerability/CVE-2024-9783

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-9783/
Summaries are generated and may contain mistakes; the official description above is the record.