# CVE-2026-2194: D-Link DI-7100G C1 start_proxy_client_email command injection

> Remote attackers can execute arbitrary commands on D-Link DI-7100G C1 routers via the start_proxy_client_email function.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **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:** 8 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-7vv3-8qfv-xjc7

## What is CVE-2026-2194?

CVE-2026-2194 is a medium-severity command injection vulnerability in D-Link DI-7100G C1, published on 8 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A flaw has been found in D-Link DI-7100G C1 24.04.18D1. This affects the function start_proxy_client_email. Executing a manipulation can lead to command injection. The attack can be executed remotely. The exploit has been published and may be used.

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-2026-2194?

It affects 1 product.


Products: Dlink Di-7100g C1 Firmware.

## How do I fix CVE-2026-2194?

No fix has been published for CVE-2026-2194 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2194 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2194 exists.

## Other vulnerabilities in D-Link DI-7100G C1

- [CVE-2025-11338](https://insights.sbomify.com/CVE-2025-11338/): D-Link DI-7100G C1 jhttpd login.cgi sub_4C0990 buffer overflow (high 8.7)
- [CVE-2025-11339](https://insights.sbomify.com/CVE-2025-11339/): D-Link DI-7100G C1 jhttpd hi_block.asp sub_4BD4F8 buffer overflow (high 8.7)
- [CVE-2026-2193](https://insights.sbomify.com/CVE-2026-2193/): D-Link DI-7100G C1 set_jhttpd_info command injection (medium 5.3)
- [CVE-2025-11335](https://insights.sbomify.com/CVE-2025-11335/): D-Link DI-7100G C1 jhttpd msp_info.htm sub_46409C command injection (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2194 and fix it if it is affected.

What it is: CVE-2026-2194 is a medium-severity command injection vulnerability in D-Link DI-7100G C1, published on 8 Feb 2026. 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-2026-2194 exists.

Affected product: D-Link DI-7100G C1. 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-2026-2194/ (Markdown: https://insights.sbomify.com/CVE-2026-2194/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2194
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2194
- OSV: https://osv.dev/vulnerability/CVE-2026-2194

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2194/
Summaries are generated and may contain mistakes; the official description above is the record.