CVE-2024-1709

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2024-02-22. Federal remediation due 2024-02-29. Known ransomware campaign use: reported by CISA.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

99.98% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.9% of scored records. A rank, not a probability.

NVD base score

10.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2024-02-21 15:36Z2 YR AGO

Last updated

2025-10-21 23:05Z1 YR AGO

Reserved

2024-02-21

Assigning CNA

cisa-cg

Record state

PUBLISHED

Severity

Critical (CVSS 10.0)

CNA CVSS vector

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

Weaknesses

• CWE-288Authentication Bypass Using an Alternate Path or ChannelBase

Data version

5.1

Document digest

a5c62f4d5349bbf9fc958a82bbe070edf87ad9df46e00007ecd9e5b6cebfd56a

• www.connectwise.comhttps://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
• www.huntress.comhttps://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8
• www.huntress.comhttps://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2
• www.bleepingcomputer.comhttps://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/
• github.comhttps://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc
• github.comhttps://github.com/rapid7/metasploit-framework/pull/18870
• www.horizon3.aihttps://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/
• techcrunch.comhttps://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/
• www.securityweek.comhttps://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/
• www.huntress.comhttps://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709government-resource