CVE-2024-1709
Authentication bypass using an alternate path or channel
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Description
ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel vulnerability, which may allow an attacker direct access to confidential information or critical systems.
Official description from the CVE record, published by cisa-cg. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org
Key data
CVSS 3.1 Critical 10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector: Network
The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity: Low
No special conditions are needed. The attack can be repeated at will.
Privileges required: None
No account or privileges are needed.
User interaction: None
No action from any user is needed.
Scope: Changed
The impact can reach other components beyond the vulnerable one.
Confidentiality impact: High
Serious or total effect on the secrecy of data.
Integrity impact: High
Serious or total effect on the trustworthiness of data.
Availability impact: High
Serious or total effect on availability.
| Metric | Value | What it means |
|---|---|---|
| Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. |
| Privileges required | None | No account or privileges are needed. |
| User interaction | None | No action from any user is needed. |
| Scope | Changed | The impact can reach other components beyond the vulnerable one. |
| Confidentiality impact | High | Serious or total effect on the secrecy of data. |
| Integrity impact | High | Serious or total effect on the trustworthiness of data. |
| Availability impact | High | Serious or total effect on availability. |
CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.
EPSS
- Score
- 0.99980 (99.98% probability)
- Percentile
- 99.98%
- Scores of
- Nov 10, 2026
- Model
- v2026.06.15
CISA Known Exploited Vulnerabilities
- Name in the catalog
- ConnectWise ScreenConnect Authentication Bypass Vulnerability
- Added to the catalog
- Feb 22, 2024
- Federal due date
- Feb 29, 2024
- Ransomware campaigns
- Known use
CISA assessment as of Feb 24, 2024
- Exploitation
- Recorded by CISA as active
- Automatable
- yes
- Technical impact
- total
Weakness (CWE)
- CWE-288Authentication Bypass Using an Alternate Path or Channel
Affected products
ConnectWise ScreenConnect
- affected: up to 23.9.7
References
- connectwise.com/company/trust/security-bulletins/connectwis…
- huntress.com/blog/vulnerability-reproduced-immediately-patc…
- huntress.com/blog/detection-guidance-for-connectwise-cwe-28…
- bleepingcomputer.com/news/security/connectwise-urges-screen…
- github.com/watchtowrlabs/connectwise-screenconnect_auth-byp…
- github.com/rapid7/metasploit-framework/pull/18870
- horizon3.ai/attack-research/red-team/connectwise-screenconn…
- techcrunch.com/2024/02/21/researchers-warn-high-risk-connec…
- securityweek.com/connectwise-confirms-screenconnect-flaw-un…
- huntress.com/blog/a-catastrophe-for-control-understanding-t…
Timeline
- ID reserved
- Record published
- Added to CISA KEV
- Record last updated
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About CubePath
Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:23 UTC. Sources and licenses