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CVE-2023-25719

8.8 · HIGH

ConnectWise Control before 22.9.10032 (formerly known as ScreenConnect) fails to validate user-supplied parameters such as the Bin/ConnectWiseControl.Client.exe h parameter.

Published Feb 13, 2023CWE-74EPSS 1.06%

Overview

CVE-2023-25719 is a high-severity vulnerability. It was published on February 13, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

ConnectWise Control before 22.9.10032 (formerly known as ScreenConnect) fails to validate user-supplied parameters such as the Bin/ConnectWiseControl.Client.exe h parameter. This results in reflected data and injection of malicious code into a downloaded executable. The executable can be used to execute malicious queries or as a denial-of-service vector. NOTE: this CVE Record is only about the parameters, such as the h parameter (this CVE Record is not about the separate issue of signed executable files that are supposed to have unique configurations across customers' installations).

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

Refcybir.com/2022/cve/hijacking-connectwise-control-and-ddos/Refm.youtube.com/watch?v=fbNVUgmstSc&pp=0gcJCf0Ao7VqN5tDRefwww.connectwise.com/blog/cybersecurity/the-importance-of-responsible-security-disclosuresRefcybir.com/2022/cve/hijacking-connectwise-control-and-ddos/Refwww.connectwise.comRefwww.connectwise.com/blog/cybersecurity/the-importance-of-responsible-security-disclosuresRefwww.huntress.com/blog/clearing-the-air-overblown-claims-of-vulnerabilities-exploits-severity

How CyberStrike helps

Frequently asked questions

What is CVE-2023-25719?

CVE-2023-25719 is a high-severity vulnerability. It was published on February 13, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2023-25719?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-25719?

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-2023-25719?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-25719 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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