CVE-2021-23861Network attack vector

Software alteration or interruption via debug command

Published Dec 8, 2021 · Updated Sep 16, 2024

Active debug code in affected Bosch VRM releases allows remote authenticated users to alter or interrupt installed software. VRM accepts a special administrative command that exposes extended debug functions, but Bosch has not disclosed the handler or missing control. Administrative rights and network access to VRM are required; affected DIVAR IP and BVMS deployments are limited to those with VRM installed.

CVSS severity6.5
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Active debug code in affected Bosch VRM releases allows remote authenticated users to alter or interrupt installed software. VRM accepts a special administrative command that exposes extended debug functions, but Bosch has not disclosed the handler or missing control. Administrative rights and network access to VRM are required; affected DIVAR IP and BVMS deployments are limited to those with VRM installed.

The record

CVE
CVE-2021-23861
Published
Dec 8, 2021
Updated
Sep 16, 2024
Vendor
Bosch Security Systems B.V.
Product
DIVAR IP all-in-one 5000
Classifications
CWE-489
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=all

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Bosch Security Systems B.V. · DIVAR IP all-in-one 5000version=all
Bosch Security Systems B.V. · DIVAR IP all-in-one 7000version=all
Bosch Security Systems B.V. · Video Recording Managerversion=3.82 <=3.82.0057; version=3.83 <=3.83.0021; version=4.0 <=4.00.0070; version=unspecified <=3.81
Bosch Security Systems B.V. · DIVAR IP 7000 R2version=all
Bosch Security Systems B.V. · Bosch Video Management Systemversion=10.0 <10.0.2; version=10.1 <10.1.1; version=11.0 <11.0.0; version=unspecified <=9.0.0

Published CVSS scores

6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
6.5Robert Bosch GmbHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
5.5NIST National Vulnerability DatabaseAV:N/AC:L/Au:S/C:N/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-489Active Debug Code

Public exploit references

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Technologies

Your stack

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Your stack

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