Vulnerability report

Exploitation attempts observed in the wild Confirmed confidence In CISA KEV

CVE-2024-1709

Authentication bypass using an alternate path or channel

ConnectWise / ScreenConnect · 0 to <= 23.9.7

Watch CVE-2024-1709 Browse KEV feed
Severity
CVSS 10.0 · Critical
Confidence
Confirmed
Exploit status
Exploitation attempts observed in the wild
EPSS
100.0%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2024-1709 is an unauthenticated Authentication bypass using an alternate path or channel affecting ConnectWise ScreenConnect. ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass...

Have exploitation attempts been observed?

Yes. Exploitation attempts have been reported for this vulnerability. Previdian lists it as a known exploited vulnerability. Listed in CISA KEV. Also reported by third-party sources. Confidence is confirmed.

Who is affected?

ConnectWise / ScreenConnect 0 to <= 23.9.7.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Authentication bypass using an alternate path or channel

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.

connectwise Affected
screenconnect
Through 23.9.7
ConnectWise Affected
ScreenConnect
Through 23.9.7
Published
21 Feb 2024
Exploitation Attempts Reported
22 Feb 2024
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

metasploit ransomware nuclei_scanner cisa malware metasploit_scanner

CVE References

Exploitation evidence

Evidence of exploitation attempts

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploitation attempts observed in the wild

CISA

Recorded 22 Feb 2024

A trusted third party reported exploitation attempts.

Targeted by malware-related exploitation attempts

CISA

Recorded 22 Feb 2024

Exploitation attempts against this vulnerability are associated with malware-related payloads.

Proof of concept available

Recorded 28 Apr 2025

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
CISA First 2024-02-22 00:00 UTC
The Shadowserver 2026-05-29 00:00 UTC
Tenable Blog 2026-06-02 14:20 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Metasploit https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/connectwise_screenconnect_rce_cve_2024_1709.rb 28 Apr 2025
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-1709.yaml 25 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

10.0 Critical

Potential damage if exploited. Separate from whether attackers are using it.

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

EPSS

100.0%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Authentication Bypass Using an Alternate Path or Channel CWE-288

Recent mention · Huntress Blog

CMMC Level 2 Non-Negotiable Requirements Explained | Huntress

Learn the CMMC Level 2 requirements you can’t skip, the new 88-point minimum score, and how the 180 day POA&M clock affects contract eligibility.

Read full advisory

All Mentions

Recent mention · Huntress Blog

CMMC Level 2 Non-Negotiable Requirements Explained | Huntress

Huntress Blog · 12 Oct 2026

Learn the CMMC Level 2 requirements you can’t skip, the new 88-point minimum score, and how the 180 day POA&M clock affects contract eligibility.

Recent mention · Tenable Blog

Inside the customer environment: Where threat actors, vulnerabilities, and exposed assets intersect

Tenable Blog · 27 May 2026

Tenable Research has developed a graph-based model linking 600+ threat groups to real-world customer exposures. It reveals which vulnerabilities sit at the intersection of severity, active exploitation, and organizational risk.Key takeawaysThe "patch everything" strategy is dead: Vulnerability prioritization based on exploitation risk offers a path forward. A directed graph model linking 600+ threat actors to vulnerabilities in 7,800 customer environments reveals that 68% of organizations carry at least one CVE previously exploited by a named adversary, and 321 tracked threat groups can...

Recent mention · Tenable Blog

Reducing Remediation Time Remains a Challenge: How Tenable Vulnerability Watch Can Help

Tenable Blog · 25 Apr 2025

Timely vulnerability remediation is an ongoing challenge for organizations as they struggle to prioritize the exposures that represent the greatest risk to their operations. Existing scoring systems are invaluable but can lack context. Here’s how Tenable’s Vulnerability Watch classification system can help.BackgroundOver the past six years working in Tenable’s research organization, I’ve watched known vulnerabilities and zero-day flaws plague organizations in the immediate aftermath of disclosure or even years afterwards. Following each blog post or threat report we’ve published, I kept...

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

ConnectWise ScreenConnect 23.9.7 - Authentication Bypass

nuclei · Created Unknown

connectwise_screenconnect_rce_cve_2024_1709

metasploit · Created Unknown

Metasploit module for CVE-2024-1709

Timeline

From disclosure to observed exploitation attempts

  1. 14:20 UTC

    KEV confirmed by Tenable Blog

    Exploitation attempts reported by an external source

  2. 00:00 UTC

    KEV confirmed by The Shadowserver

    Exploitation attempts reported by an external source

  3. 15:02 UTC

    Metasploit module available

    Exploit module available

  4. 15:02 UTC

    Public PoC available

    Public proof-of-concept code published

  5. 00:00 UTC

    Nuclei template available

    Scanner coverage available

  6. 00:00 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  7. 00:00 UTC

    Targeted by malware-related exploitation attempts

    Malware-related exploitation attempts or payloads reported

  8. 15:36 UTC

    CVE published

    Vulnerability disclosed publicly

  9. 15:05 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

Start 14-day Pro trial Read API docs
  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2024-1709

Sample API response 
{
  "cve_id": "CVE-2024-1709",
  "confidence": "Confirmed",
  "cvss_score": 10.0,
  "cvss_estimated": false,
  "epss_score": 0.9998,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}