CVE-2016-6255 Path traversal in n/a

What is CVE-2016-6255?

CVE-2016-6255 is a high-severity path traversal vulnerability in Debian Debian Linux, published on 7 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Portable UPnP SDK (aka libupnp) before 1.6.21 allows remote attackers to write to arbitrary files in the webroot via a POST request without a registered handler.

Weakness: CWE-284

Which versions are affected by CVE-2016-6255?

It affects 2 products.

Products include Debian Debian Linux, Libupnp Project Libupnp.

How do I fix CVE-2016-6255?

Upgrade to a fixed version.

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

Is CVE-2016-6255 being exploited?

There is no known exploitation of CVE-2016-6255 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

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 DLA-597-1, GHSA-cpx4-fhhq-52jh, MGASA-2016-0266, UBUNTU-CVE-2016-6255.