# CVE-2025-34054 — AVTECH IP camera, DVR, and NVR Devices

> As of 2026-04-07, CVE-2025-34054 is a Critical-severity (band derived from the CVSS v4.0 score, not stated by the CNA) vulnerability in AVTECH IP camera, DVR, and NVR Devices, CVSS v4.0 10, EPSS 2.7% (85.7th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2025-34054, most recently “Gafgyt Variant C0XMO — Cross-Platform IoT Botnet via DD-WRT UPnP CVE-2021-27137 with Python Lateral-Movement Module”.

**Last updated:** 2026-04-07

## What is CVE-2025-34054?

An unauthenticated command injection vulnerability exists in AVTECH DVR devices via Search.cgi?action=cgi_query. The use of wget without input sanitization allows attackers to inject shell commands through the username or queryb64str parameters, executing commands as root. Exploitation evidence was observed by the Shadowserver Foundation on 2025-01-04 UTC.

The record classifies CVE-2025-34054 under weakness class [CWE-78](https://intel.threadlinqs.com/cwe/CWE-78). 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 484 days ago.

## Severity and exploitation probability

- **CVSS v4.0 base score:** 10 — Critical (derived from score) (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **EPSS (FIRST):** 2.7% probability of exploitation in the next 30 days, higher than 85.7% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 10/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2025-07-01, last modified 2026-04-07

## Is CVE-2025-34054 being exploited?

Weaponised exploit code for CVE-2025-34054 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 34 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2025/CVE-2025-34054.md) (trickest)

## Affected products and versions

- **AVTECH**: IP camera, DVR, and NVR Devices

## How to fix CVE-2025-34054

No vendor patch reference has been recorded for CVE-2025-34054 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2025-34054

1 tracked threat in the Threadlinqs corpus references CVE-2025-34054, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Gafgyt Variant C0XMO — Cross-Platform IoT Botnet via DD-WRT UPnP CVE-2021-27137 with Python Lateral-Movement Module](https://intel.threadlinqs.com/threat/TL-2026-0679) — HIGH · 2026-06-04

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Exploit and proof of concept**

- [exploit-db.com — exploit](https://www.exploit-db.com/exploits/40500)
- [web.archive.org — exploit](https://web.archive.org/web/20161029201749/https://github.com/ebux/AVTECH)

**Technical analysis**

- [web.archive.org — third party advisory](https://web.archive.org/web/20240810225729/https://www.search-lab.hu/advisories/126-AVTech-devices-multiple-vulnerabilities)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://vulncheck.com/advisories/avtech-ipcamera-nvr-dvr-mulitple-vulns)

**Issue tracking and product pages**

- [avtech.com — product](https://avtech.com/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-34054
Full detection coverage and IOCs for threats exploiting CVE-2025-34054 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp