Is this vulnerability remotely exploitable over the internet?

It can be, if the DVRIP service on TCP port 34567 is exposed to the internet and an attacker can obtain valid credentials (e.g., via weak passwords, reuse, or other compromise). In many deployments the risk also exists from internal or adjacent networks.

Does an attacker need valid authentication to exploit this?

Yes, exploitation as described requires authenticated access to the DVRIP protocol to invoke the NetWork.NetCommon configuration handler. However, weak or default credentials significantly lower the barrier for attackers.

What is the safest general fix pattern for developers and vendors?

The most robust fix is to eliminate shell-based configuration updates: replace `system()` and similar calls with direct API or library calls, and enforce strict allowlists on all configuration values such as HostName so that only expected characters and lengths are accepted.

Severity:

HIGH RISK

(8.8)

OS Command Injection (CWE-78) in Xiongmai Sofia DVR/NVR NetCommon HostName Handler

CVE-2026-34005

Published:

Mar 29, 2026

Status:

Awaiting Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution (as root) on embedded DVR/NVR devices

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution (as root) on embedded DVR/NVR devices

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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OS Command Injection (CWE-78) in Xiongmai Sofia DVR/NVR NetCommon HostName Handler

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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