CVE-2025-34054Known exploitationPublic exploitNetwork attack vector

Unauthenticated root command execution via unsanitized wget parameters

Published Jul 1, 2025 · Updated Apr 7, 2026

OS command injection in AVTECH DVR firmware allows remote attackers to execute arbitrary commands as root through an unauthenticated CGI request. Search.cgi?action=cgi_query passes the username or queryb64str parameter to the wget system command without sanitization or verification. Network access to the DVR web interface is sufficient, and successful exploitation grants complete control of the device.

CVSS severity10.0
Critical
EPSS probability2.73%
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 AVTECH DVR firmware allows remote attackers to execute arbitrary commands as root through an unauthenticated CGI request. Search.cgi?action=cgi_query passes the username or queryb64str parameter to the wget system command without sanitization or verification. Network access to the DVR web interface is sufficient, and successful exploitation grants complete control of the device.

The record

CVE
CVE-2025-34054
Published
Jul 1, 2025
Updated
Apr 7, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 4, 2025Exploitation reportedShadowserver exploitation observation
  2. Jan 4, 2025Exploitation reportedVulnCheck Known Exploited Vulnerabilities entry
  3. Jul 1, 2025CVE publishedPublication date reported by the CVE source.
  4. 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 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-78Improper Neutralization of Special Elements used in an OS Command ('OS 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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