CVE-2021-23859

Denial of Service and Authentication Bypass Vulnerability in multiple Bosch products

HIGH
7.5
CVSS Score
Published: December 8, 2021 at 09:17 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
14 products affected across 1 vendorVideo Recording ManagerBosch Video Management SystemBuilding Integration System

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 2.9.1.0
bosch-access-easy-controller (same device)
v ≤ 3.8.0v ≤ 3.8.x.x
v ≤ 9.010.0 ≤ v < 10.0.210.111.0
Affected range stops below 10.0.2, so it looks safe — our inference, not a vendor statement
bosch-divar-ip-5000-firmware (environment) · bosch-divar-ip-7000-firmware (environment)
v ≤ 4.7v ≤ 4.8v ≤ 4.9
v ≤ 3.813.82 ≤ v ≤ 3.82.00573.83 ≤ v ≤ 3.83.00214.0 ≤ v ≤ 4.00.00703.823.834.0
bosch-divar-ip-5000-firmware (environment) · bosch-divar-ip-7000-firmware (environment)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-703CWE-755

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