GeoVision GV-IP Device Utility up to 9.0.5.0 Broadcast Message reliance on security through obscurity

Summaryinfo

A vulnerability classified as critical was found in GeoVision GV-IP Device Utility up to 9.0.5.0. This affects an unknown part of the component Broadcast Message Handler. Executing a manipulation can lead to reliance on security through obscurity. The identification of this vulnerability is CVE-2026-7161. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in GeoVision GV-IP Device Utility up to 9.0.5.0. It has been declared as critical. This vulnerability affects an unknown function of the component Broadcast Message Handler. The manipulation with an unknown input leads to a reliance on security through obscurity vulnerability. The CWE definition for the vulnerability is CWE-656. The product uses a protection mechanism whose strength depends heavily on its obscurity, such that knowledge of its algorithms or key data is sufficient to defeat the mechanism. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An insufficient encryption vulnerability exists in the Device Authentication functionality of GeoVision GV-IP Device Utility 9.0.5. Listening to broadcast packets can lead to credentials leak. An attacker can listen to broadcast messages to trigger this vulnerability. When interacting with various Geovision devices on the network, the utility may send privileged commands; in order to do so, the username and password of the device need to be provided. In some instances the command is broadcasted over UDP and the username/password are encrypted using a cryptographic protocol that appears to be derivated from Blowfish. However the symmetric key used for the encryption is also included in the packet, and thus the security of the username/password only relies on the "obscurity" of the encryption scheme. An attacker on the same LAN can listen to the broadcast traffic once an admin user interacts with the device, and decrypt the credentials using their own implementation of the algorithm. With this password the attacker would have full control over the device configuration, allowing them to change its ip address or even reset it to factory default.

The weakness was shared by Philippe Laulheret. The advisory is available at geovision.com.tw. This vulnerability was named CVE-2026-7161 since 04/27/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 9.0.7.0 eliminates this vulnerability.

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Productinfo

Vendor

• GeoVision

Name

• GV-IP Device Utility

Version

• 9.0.0
• 9.0.1
• 9.0.2
• 9.0.3
• 9.0.4
• 9.0.5.0

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