dbcve.org
Improper Input ValidationWeakness · CWE-20

CVE-2025-34129

HIGH · 8.7 CVSS v4.0 Published 2025-07-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
93/100
Remediation priority · Urgent
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A command injection vulnerability exists in LILIN Digital Video Recorder (DVR) devices prior to firmware version 2.0b60_20200207 due to insufficient sanitization of the FTP and NTP Server fields in the service configuration. An attacker with access to the configuration interface can upload a malicious XML file with injected shell commands in these fields. Upon subsequent configuration syncs, these commands are executed with elevated privileges. This vulnerability was exploited in the wild by the Moobot botnets.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Command injection vulnerability in LILIN DVR devices allows authenticated attackers to execute arbitrary shell commands via malicious XML configuration files by injecting commands into FTP and NTP Server fields that are not properly sanitized before execution during configuration sync operations.

MitigationUpdate affected LILIN DVR devices to firmware version 2.0b60_20200207 or later, and restrict administrative interface access to trusted personnel only.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the device as a LILIN DVR
    Access the device web interface or check system information via the admin panel to confirm the device manufacturer is LILIN and product type is a DVR (Digital Video Recorder). Look for LILIN branding in the web UI or device label.
    Affected if The device is not a LILIN DVR product, then this CVE does not apply.
  2. Check the firmware version
    Navigate to the device web administration panel, typically at the IP address of the DVR. Go to System Settings or Device Info section to find the firmware version. Compare it to the fixed version 2.0b60_20200207.
    Affected if The installed firmware version is lower than 2.0b60_20200207, indicating the device may contain the vulnerability.
  3. Verify web administrative interface accessibility
    Confirm the DVR web interface is accessible on the network. Check if the HTTP/HTTPS ports (typically 80/443 or 8080) are open and reachable from network segments accessible to potential attackers.
    Affected if The administrative web interface is exposed to untrusted networks, allowing authenticated attackers to reach the configuration functions.
  4. Confirm configuration import or sync feature exists
    In the device web interface, look for menu options related to Configuration, Backup, Restore, Import/Export, or Sync settings. This feature allows loading XML configuration files.
    Affected if The device has an XML configuration import or sync feature that accepts uploaded configuration files.
  5. Check for NTP and FTP server configuration fields
    Within the device settings, navigate to Network Settings or Time Settings to locate fields for NTP Server and FTP Server configuration. These are the injection points described in the vulnerability.
    Affected if The device exposes configurable NTP and FTP server fields that can be set through the web interface or XML configuration import.

A user is affected if they have a LILIN DVR with firmware version below 2.0b60_20200207 that has its administrative web interface accessible to untrusted users and supports XML configuration import with configurable NTP or FTP server settings.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update affected LILIN DVR devices to firmware version 2.0b60_20200207 or later, and restrict administrative interface access to trusted personnel only.

Recommended fix Moderate confidence

firmware version 2.0b60_20200207 or later

  1. 1. Identify the specific LILIN DVR device model by checking the device label or configuration interface
  2. 2. Access the device administration interface and navigate to the System or Maintenance section to check the current firmware version
  3. 3. If the firmware version is earlier than 2.0b60_20200207, download the firmware version 2.0b60_20200207 or later from the official LILIN support website (https://www.meritlilin.com or https://www.lilin.com.tw)
  4. 4. In the device administration interface, locate the Firmware Upgrade or System Update option
  5. 5. Upload the downloaded firmware file and initiate the upgrade process
  6. 6. Wait for the upgrade to complete and the device to reboot
  7. 7. After reboot, verify the new firmware version is 2.0b60_20200207 or later
  8. 8. As a precautionary measure, reset the FTP and NTP Server configuration fields to remove any previously injected malicious commands

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,280
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-34129 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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  • No spam, self-promotion, credentials, or personal data