# CVE-2025-29635: D-Link DIR-823X Command Injection

> An authorized attacker can execute arbitrary commands on D-Link DIR-823X routers via a POST request to the set_prohibiting endpoint.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Yes, since 24 Apr 2026 (CISA KEV)
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Mar 2025
- **Updated:** 25 Apr 2026
- **Also known as:** GHSA-m9wc-3h85-pp63

## What is CVE-2025-29635?

CVE-2025-29635 is a high-severity command injection vulnerability in n/a, published on 25 Mar 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A command injection vulnerability in D-Link DIR-823X 240126 and 240802 allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/set_prohibiting via the corresponding function, triggering remote command execution.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2025-29635?

It affects 1 product.


Products: Dlink Dir-823x Firmware.

## How do I fix CVE-2025-29635?

No fix has been published for CVE-2025-29635 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 8 May 2026.

## Is CVE-2025-29635 being exploited?

Yes. Attackers have exploited CVE-2025-29635 in the wild since at least 24 Apr 2026.

Public exploit code:

- D-Link DIR-823X set_prohibiting - Command Injection (nuclei): http/cves/2025/CVE-2025-29635.yaml

## Other vulnerabilities in n/a

- [CVE-2025-29040](https://insights.sbomify.com/CVE-2025-29040/): Command injection in n/a (critical 9.8)
- [CVE-2025-29041](https://insights.sbomify.com/CVE-2025-29041/): Command injection in n/a (critical 9.8)
- [CVE-2025-29042](https://insights.sbomify.com/CVE-2025-29042/): Command injection in n/a (critical 9.8)
- [CVE-2025-29043](https://insights.sbomify.com/CVE-2025-29043/): Command injection in n/a (critical 9.8)
- [CVE-2024-39962](https://insights.sbomify.com/CVE-2024-39962/): Command injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-29635 and fix it if it is affected.

What it is: CVE-2025-29635 is a high-severity command injection vulnerability in n/a, published on 25 Mar 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2025-29635 in the wild since at least 24 Apr 2026.

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-2025-29635/ (Markdown: https://insights.sbomify.com/CVE-2025-29635/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-29635
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-29635
- OSV: https://osv.dev/vulnerability/CVE-2025-29635

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-29635/
Summaries are generated and may contain mistakes; the official description above is the record.