CVE-2026-42363 GeoVision GV-IP Device Utility Device Authentication insufficient encryption vulnerability
An attacker on the same LAN can decrypt broadcasted credentials due to weak encryption, gaining full control over GeoVision device configurations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-42363?
CVE-2026-42363 is a critical vulnerability in GeoVision Inc. GV-IP Device Utility, published on 26 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-656
Which versions are affected by CVE-2026-42363?
How do I fix CVE-2026-42363?
No fix has been published for CVE-2026-42363 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-42363 being exploited?
There is no known exploitation of CVE-2026-42363 in the wild and no public exploit code.
Sources
Also known as GHSA-wcj5-244x-rmgx.