# CVE-2024-46595: Memory corruption in n/a

> Attackers can cause a Denial of Service on Draytek Vigor 3910 routers via a buffer overflow in the lan2lan.cgi saveitem parameter.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 18 Sep 2024
- **Updated:** 13 Mar 2025
- **Also known as:** GHSA-mh89-qc88-2rhh

## What is CVE-2024-46595?

CVE-2024-46595 is a high-severity memory corruption vulnerability in Draytek Vigor3910 Firmware, published on 18 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the saveitem parameter at lan2lan.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

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

## Which versions are affected by CVE-2024-46595?

It affects 1 product.


Products: Draytek Vigor3910 Firmware.

## How do I fix CVE-2024-46595?

No fix has been published for CVE-2024-46595 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-46595 being exploited?

There is no known exploitation of CVE-2024-46595 in the wild and no public exploit code.

## Other vulnerabilities in Draytek Vigor3910 Firmware

- [CVE-2024-41589](https://insights.sbomify.com/CVE-2024-41589/): Weak cryptography in n/a (high 8.8)
- [CVE-2024-41586](https://insights.sbomify.com/CVE-2024-41586/): Memory corruption in n/a (high 8.0)
- [CVE-2024-41595](https://insights.sbomify.com/CVE-2024-41595/): Memory corruption in n/a (high 8.0)
- [CVE-2024-46550](https://insights.sbomify.com/CVE-2024-46550/): Memory corruption in n/a (high 7.5)
- [CVE-2024-46551](https://insights.sbomify.com/CVE-2024-46551/): Memory corruption in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-46595 and fix it if it is affected.

What it is: CVE-2024-46595 is a high-severity memory corruption vulnerability in Draytek Vigor3910 Firmware, published on 18 Sep 2024. 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-2024-46595 in the wild and no public exploit code.

Affected product: Draytek Vigor3910 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-2024-46595/ (Markdown: https://insights.sbomify.com/CVE-2024-46595/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-46595
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-46595
- OSV: https://osv.dev/vulnerability/CVE-2024-46595

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-46595/
Summaries are generated and may contain mistakes; the official description above is the record.