CVE-2016-5772 Use after free in n/a

What is CVE-2016-5772?

CVE-2016-5772 is a critical use after free vulnerability in Debian Debian Linux, published on 7 Aug 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Double free vulnerability in the php_wddx_process_data function in wddx.c in the WDDX extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted XML data that is mishandled in a wddx_deserialize call.

Weakness: CWE-415

Which versions are affected by CVE-2016-5772?

It affects 7 products.

Products include Debian Debian Linux, Opensuse Leap, Opensuse Opensuse, Php Php, Suse Linux Enterprise Debuginfo, Suse Linux Enterprise Server and 1 more.

How do I fix CVE-2016-5772?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2016-5772 being exploited?

There is no known exploitation of CVE-2016-5772 in the wild and no public exploit code.

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 GHSA-v2qq-h2h4-pjqv, UBUNTU-CVE-2016-5772.