Cyber Resilience

CVE-2024-1708

Path Traversal in Connectwise Screenconnect ≤ 23.9.8

CISA KEVActive ExploitationEUVD ExploitedPublic PoCRansomware-linkedPath Traversal
Published
21 February 2024
Modified
17 June 2026
KEV Added
28 April 2026
Patch / advisory
CVSS Score v3.1 8.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
EPSS Score 0.88 99.7th percentile
Risk Priority 82 floored blend · peak EPSS

Summary

CVE-2024-1708 is a high-severity Path Traversal (CWE-22) vulnerability in Connectwise Screenconnect. Its CVSS base score is 8.4 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 0.3% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

ConnectWise ScreenConnect versions 23.9.7 and earlier contain a path-traversal vulnerability tracked as CVE-2024-1708 and assigned CWE-22. The flaw received a CVSS 3.1 score of 8.4 and can permit an attacker to execute remote code or directly affect confidential data and critical systems.

An attacker with network access and high privileges can leverage the path traversal to reach sensitive resources on the server. Successful exploitation grants the ability to run arbitrary code or exfiltrate and manipulate data without further user interaction beyond the required high-privilege session.

The vendor ConnectWise released version 23.9.8 to address the issue, as detailed in its security bulletin. The vulnerability appears in the CISA Known Exploited Vulnerabilities catalog, confirming observed in-the-wild activity. Its EPSS score has reached a peak of 0.8624 with a current value of 0.8481, indicating sustained exploitation interest after disclosure.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

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.

CWE(s)
KEV Date Added
28 April 2026

Related Threats

Threat-Actor AttributionAI

STORM-1175aka Medusa
Microsoft reports STORM-1175 conducting high-tempo Medusa ransomware operations exploiting vulnerable ScreenConnect instances (CVE-2024-1708).

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2021-42013Shared CWE-22both on KEV
CVE-2019-7194Shared CWE-22both on KEV
CVE-2024-41713Shared CWE-22both on KEV
CVE-2021-20123Shared CWE-22both on KEV
CVE-2019-16278Shared CWE-22both on KEV
CVE-2019-5418Shared CWE-22both on KEV
CVE-2017-12637Shared CWE-22both on KEV
CVE-2016-3976Shared CWE-22both on KEV
CVE-2022-29464Shared CWE-22both on KEV
CVE-2024-4885Shared CWE-22both on KEV

Affected Assets

connectwise
screenconnect
≤ 23.9.8

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Mitigating Controls (NIST 800-53 r5) AI

Enforces the intended directory access authorizations that path traversal would otherwise bypass.

Input validation directly neutralizes special path elements before pathname construction occurs.

Least privilege reduces the impact of any unauthorized file access obtained via traversal.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-02 partial match
prevents

Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.

PR.AA-05 none match
prevents

PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development catches path traversal via static/dynamic analysis.

prevents

Secure SDLC mandates input validation and path sanitization that directly prevent path traversal.

prevents

Application security requirements include rules for safe file handling and canonicalization.

prevents

Secure architecture principles require least-privilege file access and directory isolation.

prevents

Secure coding standards explicitly forbid unsafe path construction and mandate safe APIs.

mitigates

Information access restriction limits which files an application may read or write.

References