CVE-2024-1709
Status: AnalyzedCritical (10)⚠ Active exploitation
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.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Base score: 10
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 100%
- Percentile among all scored CVEs: 100
- Score date: 9/29/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
CISA KEV — actively exploited
- Added to catalog: 2/22/2024
- Remediation due date: 2/29/2024
- Known ransomware use: Known
Affected technologies (1)
CWEs
- CWE-288
- NVD-CWE-Other
References
- https://github.com/rapid7/metasploit-framework/pull/18870
- https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc
- https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/
- https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
- https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/
- https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass
- https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2
- https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8
- https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/
- https://github.com/rapid7/metasploit-framework/pull/18870
- https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc
- https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/
- https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
- https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/
- https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass
- https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2
- https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8
- https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709
Raw JSON (NVD)
Show
{
"id": "CVE-2024-1709",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-1709",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "active"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2024-02-24T05:00:21.568850Z"
}
}
],
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"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 6,
"exploitabilityScore": 3.9
},
{
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"source": "nvd@nist.gov",
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"userInteraction": "NONE",
"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"affectedData": [
{
"vendor": "ConnectWise",
"product": "ScreenConnect",
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"changes": [
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{
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"published": "2024-02-21T16:15:50.420",
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},
{
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709",
"tags": [
"US Government Resource"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"description": [
{
"lang": "en",
"value": "CWE-288"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel\n\n vulnerability, which may allow an attacker direct access to confidential information or \n\ncritical systems."
},
{
"lang": "es",
"value": "ConnectWise ScreenConnect 23.9.7 y versiones anteriores se ven afectados por una vulnerabilidad de omisión de autenticación mediante una ruta o canal alternativo, que puede permitir a un atacante acceder directamente a información confidencial o sistemas críticos."
}
],
"lastModified": "2026-06-17T07:04:50.557",
"cisaActionDue": "2024-02-29",
"cisaExploitAdd": "2024-02-22",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
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"versionEndExcluding": "23.9.8"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725",
"cisaRequiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
"cisaVulnerabilityName": "ConnectWise ScreenConnect Authentication Bypass Vulnerability"
}