CVE-2025-34036Known exploitationPublic exploitNetwork attack vector

Unauthenticated root command execution via language path

Published Jun 24, 2025 · Updated Apr 7, 2026

OS command injection in Shenzhen TVT CCTV-DVR allows remote attackers to execute arbitrary commands as root through its web interface. Cross Web Server passes the unescaped language path segment from /language/[lang]/index.html into a tar extraction command. No authentication or user interaction is required; network access to TCP port 81 or 82 permits full control of the DVR.

CVSS severity10.0
Critical
EPSS probability27.32%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Shenzhen TVT CCTV-DVR allows remote attackers to execute arbitrary commands as root through its web interface. Cross Web Server passes the unescaped language path segment from /language/[lang]/index.html into a tar extraction command. No authentication or user interaction is required; network access to TCP port 81 or 82 permits full control of the DVR.

The record

CVE
CVE-2025-34036
Published
Jun 24, 2025
Updated
Apr 7, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, CWE-78, CAPEC-88, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2025Exploitation reportedShadowserver observed exploitation activity
  2. Jun 24, 2025CVE publishedPublication date reported by the CVE source.
  3. Apr 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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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

10.0VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
CAPEC-88OS Command Injection
T1059.004Unix Shell
T1190Exploit Public-Facing Application

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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