CVE-2018-11529 Use after free in n/a

What is CVE-2018-11529?

CVE-2018-11529 is a high-severity use after free vulnerability in Debian Debian Linux, published on 11 Jul 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

VideoLAN VLC media player 2.2.x is prone to a use after free vulnerability which an attacker can leverage to execute arbitrary code via crafted MKV files. Failed exploit attempts will likely result in denial of service conditions.

Weakness: CWE-416

Which versions are affected by CVE-2018-11529?

It affects 2 products.

Products include Debian Debian Linux, Videolan Vlc Media Player.

How do I fix CVE-2018-11529?

Apply the vendor's patch.

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-2018-11529 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-11529 exists.

Public exploit code: 1 Metasploit module and 2 Exploit-DB entries.

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-2018-11529, DSA-4251-1, GHSA-j4p7-jwxh-8774, MGASA-2018-0400, UBUNTU-CVE-2018-11529.