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Vulnerability record · CVE-2023-25719 · published 13 February 2023

CVE-2023-25719: Connectwise control injection vulnerability

Connectwise · Control

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).

8.8 CVSS 3.1 High EPSS 1.1% · top 36.7% CWE-74 · Injection
8.8CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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).

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cybir.com/2022/cve/hijacking-connectwise-control-and-ddos/ ExploitThird Party Advisory
https://m.youtube.com/watch?v=fbNVUgmstSc&pp=0gcJCf0Ao7VqN5tD
https://www.connectwise.com/blog/cybersecurity/the-importance-of-responsible-security-disclosures
https://cybir.com/2022/cve/hijacking-connectwise-control-and-ddos/ ExploitThird Party Advisory
https://www.connectwise.com Product
https://www.connectwise.com/blog/cybersecurity/the-importance-of-responsible-security-disclosures
https://www.huntress.com/blog/clearing-the-air-overblown-claims-of-vulnerabilities-exploits-severity

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-25718Connectwise control improper verification of cryptographic signature vulnerabilityIn ConnectWise Control through 22.9.10032 (formerly known as ScreenConnect), after an executable file is signed, additional instructions can be added…EPSS 0.69%9.8CVE-2019-16517Connectwise control origin validation error vulnerabilityAn issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is a CORS misconfiguration, which reflected t…EPSS 1.3%8.8CVE-2019-16513Connectwise control cross-site request forgery vulnerabilityAn issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. CSRF can be used to send API requests.EPSS 1.0%7.2CVE-2019-16514Connectwise control unrestricted file upload vulnerabilityAn issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. The server allows remote code execution. Administra…EPSS 4.2%6.5CVE-2019-16515Connectwise control vulnerabilityAn issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. Certain HTTP security headers are not used.EPSS 1.7%5.3CVE-2019-16516Connectwise control observable discrepancy vulnerabilityAn issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is a user enumeration vulnerability, allowing…EPSS 19%4.8CVE-2019-16512Connectwise control cross-site scripting vulnerabilityAn issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is stored XSS in the Appearance modifier.EPSS 1.2%10.0CVE-2025-20337Cisco ISE API input validation flaw allows unauthenticated root RCECisco ISE and ISE-PIC fail to properly validate user-supplied input in a specific API, letting an unauthenticated remote attacker execute arbitrary c…KEVEPSS 68%analysed

Source: NIST National Vulnerability Database (record CVE-2023-25719), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.