# CVE-2023-29665: Memory corruption in n/a

> A stack overflow in the D-Link DIR823G router allows attackers to execute arbitrary code or cause a denial of service via the SetPasswdSettings interface.

- **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:** 17 Apr 2023
- **Updated:** 6 Feb 2025
- **Also known as:** GHSA-mgr3-3432-qw3c

## What is CVE-2023-29665?

CVE-2023-29665 is a critical memory corruption vulnerability in Dlink Dir-823g Firmware, published on 17 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

D-Link DIR823G_V1.0.2B05 was discovered to contain a stack overflow via the NewPassword parameters in SetPasswdSettings.

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

## Which versions are affected by CVE-2023-29665?

It affects 1 product.


Products: Dlink Dir-823g Firmware.

## How do I fix CVE-2023-29665?

No fix has been published for CVE-2023-29665 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-29665 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-29665 exists.

## Other vulnerabilities in Dlink Dir-823g Firmware

- [CVE-2023-43235](https://insights.sbomify.com/CVE-2023-43235/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-43241](https://insights.sbomify.com/CVE-2023-43241/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-26612](https://insights.sbomify.com/CVE-2023-26612/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-26613](https://insights.sbomify.com/CVE-2023-26613/): Command injection in n/a (critical 9.8)
- [CVE-2023-26616](https://insights.sbomify.com/CVE-2023-26616/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-29665 and fix it if it is affected.

What it is: CVE-2023-29665 is a critical memory corruption vulnerability in Dlink Dir-823g Firmware, published on 17 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-29665 exists.

Affected product: Dlink Dir-823g 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-2023-29665/ (Markdown: https://insights.sbomify.com/CVE-2023-29665/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-29665
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-29665
- OSV: https://osv.dev/vulnerability/CVE-2023-29665

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-29665/
Summaries are generated and may contain mistakes; the official description above is the record.