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CVE-2015-3306

CRITICAL
10.0 CISA KEVNVD

Summary

generated automatically from NVD data

CVE-2015-3306 affects the mod_copy module in ProFTPD 1.3.5, where the site cpfr and site cpto commands can be abused by remote attackers to read and write arbitrary files. The flaw is classed as an access control weakness (CWE-284) and is also listed for Fedora, Debian Linux, openSUSE Tumbleweed and SUSE Linux Enterprise Server. It is rated CRITICAL with a CVSS v3.1 score of 10.0, and CISA's KEV catalog lists it as exploited.

NVD description

The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.

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⚠️ Actively exploited — CISA KEV

This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-10-08. It is confirmed exploited in the wild and must be patched as a priority.

Remediation deadline (US federal agencies): 2026-10-11

EPSS · FIRST.org

99.5%probability of exploitation in the next 30 days

Higher than 99% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.

CVSS v3.1 Score

10.0
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Information

Published
18 mai 2015
Updated
9 oct. 2026
Status
Analyzed
Source
cve@mitre.org

Affected products

fedoraproject fedora
Versions : 20, 21, 22
debian debian linux
Versions : 7.0, 8.0, 9.0
opensuse tumbleweed
suse linux enterprise server
Versions : 15
proftpd proftpd
Versions : 1.3.5

Weaknesses (CWE)

CWE-284CWE-284

References (29)

Similar CVEs

Other vulnerabilities of type CWE-284

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