ProFTPD Improper Access Control Vulnerability

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• NewsExploited · CISA KEVProFTPD · ProFTPD

  ProFTPD Improper Access Control Vulnerability

  CVE-2015-3306

  ProFTPD contains an improper access control vulnerability that could allow remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.

  CISA's required action · due 11 Oct 2026 for U.S. federal civilian agencies

  Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

  Cited by CISA: lists.debian.org · lists.opensuse.org · nvd.nist.gov

  Added to KEV 8 Oct 2026 · Source checked 4 Nov 2026, 16:25 UTC · CISA KEV entry

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