Deserialization of Untrusted Data in the BVMS Mobile Video Service (BVMS MVS) allows an unauthenticated remote attacker to execute arbitrary code on the system. This affects Bosch BVMS versions 10.0 <= 10.0.0.1225, 9.0 <= 9.0.0.827, 8.0 <= 8.0.0.329 and 7.5 and older. This affects Bosch DIVAR IP 3000 and DIVAR IP 7000 if a vulnerable BVMS version is installed.

Improper Authorization in SSH server in Bosch VMS 11.0, 11.1.0, and 11.1.1 allows a remote authenticated user to access resources within the trusted internal network via a port forwarding request.

An unauthenticated attacker is able to send a special HTTP request, that causes a service to crash. In case of a standalone VRM or BVMS with VRM installation this crash also opens the possibility to send further unauthenticated commands to the service. On some products the interface is only local accessible lowering the CVSS base score. For a list of modified CVSS scores, please see the official Bosch Advisory Appendix chapter Modified CVSS Scores for CVE-2021-23859

A crafted configuration packet sent by an authenticated administrative user can be used to execute arbitrary commands in system context. This issue also affects installations of the VRM, DIVAR IP, BVMS with VRM installed, the VIDEOJET decoder (VJD-7513 and VJD-8000).

By executing a special command, an user with administrative rights can get access to extended debug functionality on the VRM allowing an impact on integrity or availability of the installed software. This issue also affects installations of the DIVAR IP and BVMS with VRM installed.

An improper handling of a malformed API answer packets to API clients in Bosch BT software products can allow an unauthenticated attacker to cause a Denial of Service (DoS) situation. To exploit this vulnerability an attacker has to replace an existing API server e.g. through Man-in-the-Middle attacks.