Vacron Network Video Recorder 1.4 HTTP Request board.cgi os command injection

Summaryinfo

A vulnerability identified as critical has been detected in Vacron Network Video Recorder 1.4. This impacts an unknown function of the file board.cgi of the component HTTP Request Handler. The manipulation leads to os command injection. This vulnerability is referenced as CVE-2025-34043. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Vacron Network Video Recorder 1.4 and classified as very critical. This issue affects some unknown functionality of the file board.cgi of the component HTTP Request Handler. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A remote command injection vulnerability exists in Vacron Network Video Recorder (NVR) devices v1.4 due to improper input sanitization in the board.cgi script. The vulnerability allows unauthenticated attackers to pass arbitrary commands to the underlying operating system via crafted HTTP requests. These commands are executed with the privileges of the web server process, enabling remote code execution and potential full device compromise. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.

It is possible to read the advisory at tenable.com. The identification of this vulnerability is CVE-2025-34043 since 04/15/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/20/2025). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19211). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Vacron

Name

• Network Video Recorder

Version

• 1.4

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion