CVE-2011-10021 Magix Musik Maker <= v16 .mmm Stack-Based Buffer Overflow
Attackers can execute arbitrary code by tricking users into opening a malicious .mmm file in Magix Musik Maker.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2011-10021?
CVE-2011-10021 is a high-severity memory corruption vulnerability in Magix Musik Maker, published on 20 Aug 2025. 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
Magix Musik Maker 16 is vulnerable to a stack-based buffer overflow due to improper handling of .mmm arrangement files. The vulnerability arises from an unsafe strcpy() operation that fails to validate input length, allowing attackers to overwrite the Structured Exception Handler (SEH). By crafting a malicious .mmm file, an attacker can trigger the overflow when the file is opened, potentially leading to arbitrary code execution. This vulnerability was remediated in version 17.
Weakness: CWE-121
Which versions are affected by CVE-2011-10021?
How do I fix CVE-2011-10021?
No fix has been published for CVE-2011-10021 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2011-10021 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-10021 exists.
Public exploit code: 1 Metasploit module.
Sources
Also known as GHSA-x945-8rv2-29j8.