CVE-2014-5266 Denial of service in n/a

What is CVE-2014-5266?

CVE-2014-5266 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 18 Aug 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Incutio XML-RPC (IXR) Library, as used in WordPress before 3.9.2 and Drupal 6.x before 6.33 and 7.x before 7.31, does not limit the number of elements in an XML document, which allows remote attackers to cause a denial of service (CPU consumption) via a large document, a different vulnerability than CVE-2014-5265.

Weakness: CWE-399

Which versions are affected by CVE-2014-5266?

It affects 3 products.

Products include Debian Debian Linux, Drupal Drupal, Wordpress Wordpress.

How do I fix CVE-2014-5266?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2014-5266 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2014-5266 exists.

Public exploit code: 1 Metasploit module.

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-2014-5266, GHSA-mqgc-42gw-w5hm, UBUNTU-CVE-2014-5266.