CVE-2015-3306Vulnerability
ProFTPD Improper Access Control Vulnerability
Reported by 4 independent sources · first reported by CISA advisories · last reported
Last reported 13 days ago
Fix due 11 Oct 2026
Used by ransomware: not knownCISA KEV catalogue
higher than 99% of CVEsFIRST EPSS, as of 17 Oct 2026
What the reports say
5 reports, newest first · the exact sentence from each-
U.S. CISA adds ProFTPD, ONLYOFFICE Docs, Strapi, Apache Struts, and ISC BIND flaws to its Known Exploited Vulnerabilities catalog“CVE-2015-3306 (CVSS score of 10.0) – An access control flaw in ProFTPD that could let remote attackers read or modify arbitrary files by abusing the SITE CPFR and SITE CPTO commands.”
-
Flax Typhoon Exploits Five Flaws as CISA Sets October 11 Deadline for Federal Agencies“CVE-2015-3306 (CVSS score: 10.0) - An improper access control vulnerability in ProFTPD that could allow remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.”
-
US disrupts Chinese hacking tools as 7 govts warn of PRC spies stealing sensitive data worldwide“…, the US Cybersecurity and Infrastructure Security Agency (CISA) has added five CVEs to its Known Exploited Vulnerabilities Catalog: CVE-2015-3306 CVE-2015-5477 CVE-2016-3081 CVE-2021-3199 CVE-2023-22894 The court-authorized seizures are the latest in a long series of US law-enfo…”
-
FBI Says China-Linked Hackers Ran Portal Giving Third Parties Access to Stolen Emails“CVE-2015-3306*”
-
Chinese Government-linked Cyber Threat Actors Combine Automated and Hands-on Hacking Tools to Steal Sensitive Data“CVE-2015-3306”
Indicators reported together
named in the same reports- dns.studiocloud[.]xyzin 1 report
- natcloudservice[.]comin 1 report
- 2.3.20[.]2in 1 report
- 2.3.24[.]1in 1 report
- 2.3.20[.]3in 1 report
- 2.3.24[.]3in 1 report
- 2.3.28[.]1in 1 report
- c0cc[.]ccin 1 report
- 98aicai[.]comin 1 report
- 98aicode[.]comin 1 report
- outlook3650[.]comin 1 report
- youtubecard[.]comin 1 report
- linkedinns[.]netin 1 report
Copy these 13 indicators · defanged
Also named with it: CVE-2015-5477, CVE-2016-3081, CVE-2021-3199, CVE-2023-22894, CVE-2019-11510, CVE-2014-6278, CVE-2021-22205
Thanks — we review every report.