CVE-2024-1708: ConnectWise ScreenConnect Path Traversal Vulnerability

In short

ConnectWise ScreenConnect has a weakness classified as path traversal (CWE-22). CISA added it to its Known Exploited Vulnerabilities catalog on 2026-04-28. NVD lists CVSS 3.1 at 8.4 HIGH. CISA reports known ransomware campaign use.

What it is

“ConnectWise ScreenConnect contains a path traversal vulnerability which could allow an attacker to execute remote code or directly impact confidential data and critical systems.” — CISA KEV, retrieved 2026-11-01

“ConnectWise ScreenConnect 23.9.7 and prior are affected by path-traversal vulnerability, which may allow an attacker the ability to execute remote code or directly impact confidential data or critical systems. ” — NVD, retrieved 2026-11-01

Who is affected

ConnectWise ScreenConnect. NVD lists the following versions as affected:

• Versions before 23.9.8

Exploitation status

CISA KEV added: 2026-04-28. Known ransomware campaign use: Known (reported by CISA). Due date CISA set for US federal civilian agencies: 2026-05-12.

Scores

NVD CVSS 3.1: 8.4 HIGH; vector CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H; source [email protected].

EPSS by FIRST: 95.44%; percentile 99.87; score date 2026-10-31. EPSS estimates the probability of exploitation in the next 30 days.

CWE: CWE-22.

Timeline

CISA required action

“Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.” — CISA KEV

What to do

• Confirm whether you run ConnectWise ScreenConnect and which version.
• Apply the vendor update or mitigation in the advisory.
• Follow CISA’s required action.
• Review the vendor guidance on signs of compromise.
• Track the fix through completion.

References

• Vendor Advisory: https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
• NVD detail
• CVE.org record
• CISA KEV catalog

Sources and dates

CISA Known Exploited Vulnerabilities Catalog, version 2026.10.30; retrieved 2026-11-01. CISA KEV data: CC0 1.0. No endorsement by CISA.

NVD retrieved: 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.

EPSS scores by FIRST; score date 2026-10-31.