CVE-2011-10016 Real Networks Netzip Classic 7.5.1.86 File Parsing Buffer Overflow
A stack-based buffer overflow in Netzip Classic allows arbitrary code execution when a user opens a specially crafted ZIP archive.
- 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-2011-10016?
CVE-2011-10016 is a critical memory corruption vulnerability in RealNetworks Inc. Netzip Classic, published on 13 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
Real Networks Netzip Classic version 7.5.1.86 is vulnerable to a stack-based buffer overflow when parsing a specially crafted ZIP archive. The vulnerability is triggered when the application attempts to process a file name within the archive that exceeds the expected buffer size. Exploitation allows arbitrary code execution under the context of the victim user when the ZIP file is opened.
Weakness: CWE-121
Which versions are affected by CVE-2011-10016?
How do I fix CVE-2011-10016?
No fix has been published for CVE-2011-10016 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-2011-10016 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-10016 exists.
Public exploit code: 1 Metasploit module.
Sources
Also known as GHSA-7hjr-24hp-m8wm.