CVE-2025-34106 PDF Shaper v3.5/3.6 Buffer Overflow via Convert to Image Feature
A buffer overflow in PDF Shaper allows arbitrary code execution when a user opens a malicious PDF file.
- 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-2025-34106?
CVE-2025-34106 is a high-severity memory corruption vulnerability in Burnaware PDF Shaper, published on 15 Jul 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
A buffer overflow vulnerability exists in PDF Shaper versions 3.5 and 3.6 when converting a crafted PDF file to an image using the 'Convert PDF to Image' functionality. An attacker can exploit this vulnerability by tricking a user into opening a maliciously crafted PDF file, leading to arbitrary code execution under the context of the user. This vulnerability has been verified on Windows XP, 7, 8, and 10 platforms using the PDFTools.exe component.
Which versions are affected by CVE-2025-34106?
How do I fix CVE-2025-34106?
No fix has been published for CVE-2025-34106 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-2025-34106 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34106 exists.
Public exploit code: 1 Metasploit module.
Sources
Also known as GHSA-8276-hmm2-6q4h.