# CVE-2025-10123: D-Link DIR-823X set_static_leases sub_415028 command injection

> Remote attackers can execute arbitrary commands on D-Link DIR-823X routers via the Hostname parameter in the static leases configuration.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Sep 2025
- **Updated:** 9 Sep 2025
- **Also known as:** GHSA-fwjc-77p8-c4h7

## What is CVE-2025-10123?

CVE-2025-10123 is a medium-severity command injection vulnerability in D-Link DIR-823X, published on 9 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was determined in D-Link DIR-823X up to 250416. Affected by this vulnerability is the function sub_415028 of the file /goform/set_static_leases. Executing manipulation of the argument Hostname can lead to command injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2025-10123?

It affects 1 product.


Products: Dlink Dir-823x Firmware.

## How do I fix CVE-2025-10123?

No fix has been published for CVE-2025-10123 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-10123 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-10123 exists.

## Other vulnerabilities in D-Link DIR-823X

- [CVE-2025-29635](https://insights.sbomify.com/CVE-2025-29635/): D-Link DIR-823X Command Injection (high 7.2, exploited in the wild)
- [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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-10123 and fix it if it is affected.

What it is: CVE-2025-10123 is a medium-severity command injection vulnerability in D-Link DIR-823X, published on 9 Sep 2025. 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-2025-10123 exists.

Affected product: D-Link DIR-823X. 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-2025-10123/ (Markdown: https://insights.sbomify.com/CVE-2025-10123/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-10123
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-10123
- OSV: https://osv.dev/vulnerability/CVE-2025-10123

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-10123/
Summaries are generated and may contain mistakes; the official description above is the record.