Burnaware PDF Shaper up to 3.6 on Windows PDF File Parser PDFTools.exe memory corruption

Summaryinfo

A vulnerability classified as critical has been found in Burnaware PDF Shaper up to 3.6 on Windows. The affected element is an unknown function of the file PDFTools.exe of the component PDF File Parser. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2025-34106. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability has been found in Burnaware PDF Shaper up to 3.6 on Windows and classified as critical. Affected by this vulnerability is some unknown processing of the file PDFTools.exe of the component PDF File Parser. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was shared by metacom. It is possible to read the advisory at raw.githubusercontent.com. This vulnerability is known as CVE-2025-34106 since 04/15/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (37760) and EUVD (EUVD-2025-21428). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Burnaware

Name

• PDF Shaper

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion