CVE-2015-3306

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2026-10-08. Federal remediation due 2026-10-11.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

99.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.9% of scored records. A rank, not a probability.

NVD base score

10.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-09.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2015-05-18 15:00Z11 YR AGO

Last updated

2026-10-09 16:02Z19 DAYS AGO

Reserved

2015-04-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 10.0)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

• CWE-284Improper Access ControlPillar

Data version

5.2

Document digest

6c786f067bc4635554017eca7e518b64d2e0c2a6054d488ec939fa96e859a2b7

• www.rapid7.comhttp://www.rapid7.com/db/modules/exploit/unix/ftp/proftpd_modcopy_execx_refsource_MISC
• www.exploit-db.com36803https://www.exploit-db.com/exploits/36803/exploitx_refsource_EXPLOIT-DB
• packetstormsecurity.comhttp://packetstormsecurity.com/files/131555/ProFTPd-1.3.5-Remote-Command-Execution.htmlx_refsource_MISC
• www.debian.orgDSA-3263http://www.debian.org/security/2015/dsa-3263vendor-advisoryx_refsource_DEBIAN
• packetstormsecurity.comhttp://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.htmlx_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.htmlx_refsource_MISC
• lists.opensuse.orgopenSUSE-SU-2015:1031http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.htmlvendor-advisoryx_refsource_SUSE
• lists.fedoraproject.orgFEDORA-2015-7164http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157053.htmlvendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2015-6401http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157054.htmlvendor-advisoryx_refsource_FEDORA
• www.securityfocus.com74238http://www.securityfocus.com/bid/74238vdb-entryx_refsource_BID
• www.exploit-db.com36742https://www.exploit-db.com/exploits/36742/exploitx_refsource_EXPLOIT-DB
• lists.fedoraproject.orgFEDORA-2015-7086http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157581.htmlvendor-advisoryx_refsource_FEDORA
• packetstormsecurity.comhttp://packetstormsecurity.com/files/131505/ProFTPd-1.3.5-File-Copy.htmlx_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/162777/ProFTPd-1.3.5-Remote-Command-Execution.htmlx_refsource_MISC
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3306government-resource