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CVE-2025-3935

CISA KEV

Published June 2, 2025 · Updated April 3, 2026

high
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.

Affected Products

VendorProduct
ConnectWiseScreenConnect

Patch Status

Patch by 2025-06-23

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2025-3935.