Risk Letters

Exploited vulnerability

CVE-2015-3306

TLP:CLEAR

ProFTPD Improper Access Control Vulnerability

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.

Facts

  • Vendor: ProFTPD
  • Product: ProFTPD
  • CVSS: 10
  • EPSS (probability of exploitation within 30 days): 99.5 %
  • On CISA's Known Exploited Vulnerabilities list since: 8 October 2026
  • First known exploitation: 8 October 2026
  • CISA's deadline for US federal agencies: 11 October 2026
  • Weakness: CWE-284
  • First seen by Risk Letters: 8 October 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD