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CVE-2021-23859

9.1 · CRITICAL

An unauthenticated attacker is able to send a special HTTP request, that causes a service to crash.

Published Dec 8, 2021CWE-703EPSS 1.00%

Overview

CVE-2021-23859 is a critical-severity vulnerability. It was published on December 8, 2021 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpsirt.bosch.com/security-advisories/bosch-sa-043434-bt.htmlRefpsirt.bosch.com/security-advisories/bosch-sa-043434-bt.html

How CyberStrike helps

Frequently asked questions

What is CVE-2021-23859?

CVE-2021-23859 is a critical-severity vulnerability. It was published on December 8, 2021 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2021-23859?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-23859?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-23859?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-23859 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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