Is CVE-2025-3935 actively exploited?

Yes. CVE-2025-3935 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2025-3935 be exploited remotely?

The attack vector of CVE-2025-3935 has not been classified yet.

What is the CVSS score of CVE-2025-3935?

CVE-2025-3935 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2025-3935

HIGHCISA KEVIN THE WILD

CVE-2025-3935

Published: June 2, 2025

EPSS:15.50%probability of exploitation in 30 daysPercentile:94.5th

Official Description

ConnectWise ScreenConnect contains an improper authentication vulnerability. This vulnerability could allow a ViewState code injection attack, which could allow remote code execution if machine keys are compromised.

NVD Source

CISA KEV Advisory

ConnectWise ScreenConnect Improper Authentication Vulnerability

Added to KEV: 2025-06-02Federal patch deadline: 2025-06-23

Required Action (CISA)

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

Risk Analysis

ConnectWise ScreenConnect contains an improper authentication vulnerability that could lead to remote code execution through a ViewState code injection if machine keys are compromised. This high-severity flaw has a high EPSS score and confirmed exploitation, making it an urgent risk.

This vulnerability is actively exploited in the wild and is listed in CISA's KEV catalog, confirming its real-world impact. It is remotely exploitable.

Recommended Action

Organizations using ConnectWise ScreenConnect should apply the latest security updates and patches immediately. Ensure machine keys are securely protected and regularly rotated to prevent compromise.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-3935 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2025-3935 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.