PatchTheCVECVE-2023-25719: ConnectWise Control before 22.9.10032 (formerly known as ScreenConnect) fails to validate user-supplied parame
CVE-2023-25719 is a high-severity flaw (CVSS 8.8) affecting control. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.1% (top 35%) |
| CISA exploited list | No |
| Weakness | CWE-74 |
| Published | 2023-02-13 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-25719?
control: upgrade to 22.9.10032. Exact commands for each OS are on this page.
Is CVE-2023-25719 being exploited?
CVE-2023-25719 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-25719 affect?
CVE-2023-25719 affects control. Severity is high (CVSS 8.8). 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 int
How urgent is CVE-2023-25719?
Priority 52/100. High severity; Public exploit reference
Software pages
ConnectWise ScreenConnect vulnerabilities
Related CVEs
- CVE-2023-25718 CRITICAL 9.8 UPGRADE In ConnectWise Control through 22.9.10032 (formerly known as ScreenConnect), after an executable file is signe
- CVE-2021-36763 HIGH 7.5 UPGRADE UPGRADE In CODESYS V3 web server before 3.5.17.10, files or directories are accessible to External Parties.
- CVE-2021-33485 CRITICAL 9.8 UPGRADE UPGRADE CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.
- CVE-2019-16517 CRITICAL 9.8 DOWNGRADE An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185
- CVE-2019-16516 MEDIUM 5.3 UPGRADE An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185