GeoVision GV-IP Device Utility Device Authentication insufficient encryption vulnerability

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Summary

CVECVE-2026-42363
StatePUBLISHED
AssignerGV
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-27 00:16:20 UTC
Updated2026-04-27 00:16:20 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 9.3 CRITICAL from 0df08a0e-a200-4957-9bb0-084f562506f9

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H

Problem Types: CWE-656 | CWE-656 CWE-656 - Reliance on Security Through Obscurity

VersionSourceTypeScoreSeverityVector
3.10df08a0e-a200-4957-9bb0-084f562506f9Secondary9.3CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H
3.1CNACVSS9.3CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GeoVision Inc. GV-IP Device Utility affected 9.0.5.0 Windows

References

ReferenceSourceLinkTags
talosintelligence.com/vulnerability_reports 0df08a0e-a200-4957-9bb0-084f562506f9 talosintelligence.com
www.geovision.com.tw/cyber_security.php 0df08a0e-a200-4957-9bb0-084f562506f9 www.geovision.com.tw
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Philippe Laulheret of Cisco Talos. (en)

CNA: Kelly Patterson of Cisco Talos. (en)

Additional Advisory Data

Solutions

CNA: GeoVision GV-IP Device Utility Device Authentication version 9.0.7.0 has patched reported vulnerability.

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