CVE-2019-12815 Path traversal in n/a

What is CVE-2019-12815?

CVE-2019-12815 is a critical path traversal vulnerability in Debian Debian Linux, published on 19 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An arbitrary file copy vulnerability in mod_copy in ProFTPD up to 1.3.5b allows for remote code execution and information disclosure without authentication, a related issue to CVE-2015-3306.

Weakness: CWE-755

Which versions are affected by CVE-2019-12815?

It affects 4 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Proftpd Proftpd, Siemens Simatic Cp 1543-1 Firmware.

How do I fix CVE-2019-12815?

Apply the vendor's patch.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2019-12815 being exploited?

There is no known exploitation of CVE-2019-12815 in the wild and no public exploit code.

Public exploit code: 2 proofs of concept on GitHub.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-12815, DLA-1873-1, DSA-4491-1, GHSA-f989-xw5v-4w5p, UBUNTU-CVE-2019-12815.