Home › Exploited CVEs › CVE-2025-3935
CVE-2025-3935: ConnectWise ScreenConnect Improper Authentication Vulnerability
ConnectWise ScreenConnect · in CISA KEV since 2025-06-02
2025-06-02added to KEV
2025-06-23federal remediation due date
3.51%EPSS exploit probability (30 days) 88.7th percentile
7.2 HIGHCVSS 3.1
Unknownknown ransomware use
38days from NVD publication to KEV
What it is
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.
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.
| CWE | CWE-287 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2025-04-25 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2025-3935.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.