CVE-2025-34132Known exploitationPublic exploitNetwork attack vector

Unauthenticated root command execution via NTPUpdate

Published Jul 16, 2025 · Updated May 15, 2026

OS command injection in Merit LILIN DVR firmware before 2.0b60_20200207 allows remote attackers to execute commands as root via DVRPOST. In /z/zbin/dvr_box, dvr_serv::do_request passes the XML NTPUpdate Server value through dvr_core::NTPUpdate to UtilityNtp::run, which concatenates it into an NTP command without filtering special characters. No authentication or user interaction is required; successful exploitation grants root-level control of the recorder.

CVSS severity9.3
Critical
EPSS probability1.75%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in Merit LILIN DVR firmware before 2.0b60_20200207 allows remote attackers to execute commands as root via DVRPOST. In /z/zbin/dvr_box, dvr_serv::do_request passes the XML NTPUpdate Server value through dvr_core::NTPUpdate to UtilityNtp::run, which concatenates it into an NTP command without filtering special characters. No authentication or user interaction is required; successful exploitation grants root-level control of the recorder.

The record

CVE
CVE-2025-34132
Published
Jul 16, 2025
Updated
May 15, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, CWE-78, T1190, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2019Exploitation reportedChalubo, FBot, and Moobot exploitation of LILIN DVR devices
  2. Dec 8, 2024Exploitation reportedRebirth botnet exploitation of LILIN DVR NTP configuration
  3. Jul 16, 2025CVE publishedPublication date reported by the CVE source.
  4. May 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo