# CVE-2025-34132: LILIN DVR Command Injection via NTPUpdate in dvr_box

> Remote attackers can execute arbitrary commands as root on LILIN DVR devices by injecting malicious input into the NTP configuration field.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Jul 2025
- **Updated:** 15 May 2026
- **Also known as:** GHSA-g9j5-xpjv-f35r

## What is CVE-2025-34132?

CVE-2025-34132 is a critical command injection vulnerability in Merit LILIN DVR Firmware, published on 16 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A command injection vulnerability exists in LILIN Digital Video Recorder (DVR) devices prior to firmware version 2.0b60_20200207 via the Server field in the NTPUpdate configuration. The web service at /z/zbin/dvr_box fails to properly sanitize input, allowing remote attackers to inject and execute arbitrary commands as root by supplying specially crafted XML data to the DVRPOST interface.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-34132?


## How do I fix CVE-2025-34132?

No fix has been published for CVE-2025-34132 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34132 being exploited?

There is no known exploitation of CVE-2025-34132 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34132 and fix it if it is affected.

What it is: CVE-2025-34132 is a critical command injection vulnerability in Merit LILIN DVR Firmware, published on 16 Jul 2025. 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-2025-34132 in the wild and no public exploit code.

Affected product: Merit LILIN DVR 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-2025-34132/ (Markdown: https://insights.sbomify.com/CVE-2025-34132/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34132
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34132
- OSV: https://osv.dev/vulnerability/CVE-2025-34132

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34132/
Summaries are generated and may contain mistakes; the official description above is the record.