CVE-2021-23859

9.1 CRITICAL 1% exploit odds Fix listed Denial of service

What it is

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

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data tampering, service disruption.
Exploit odds: 1.0% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-12-08 22:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:38 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.0% in the next 30 days (EPSS).
Severity: 9.1 CRITICAL (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-12-08 22:15 UTC
Last modified: 2026-06-17 03:38 UTC
Exploit probability: 1.0% · EPSS, next 30 days
Weakness: CWE-703
Record status: Modified

Affected

Bosch Video Management System ≤ 9.0
Bosch Video Management System < 10.0.2
Bosch Video Management System 10.1
Bosch Video Management System 11.0
Bosch Video Recording Manager ≤ 3.81
Bosch Video Recording Manager ≤ 3.82.0057
Bosch Video Recording Manager ≤ 3.83.0021
Bosch Video Recording Manager ≤ 4.00.0070

Attack profile CVSS 3.1 · 9.1

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: High

Raw vector

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

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record