CVE-2025-34106

PDF Shaper v3.5/3.6 Buffer Overflow via Convert to Image Feature

State: Published
Severity: 8.4 High
Published: Jul 15, 2025
Updated: May 14, 2026
Reserved: Apr 15, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	8.4 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	VulnCheck

Weaknesses

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
PDF ShaperBurnaware	3.5 through 3.6Affected

References

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/shaper_pdf_bof.rbexploit
https://www.exploit-db.com/exploits/37760exploit
https://www.pdfshaper.com/product
https://vulners.com/vulnerlab/VULNERABLE:1579third-party-advisory
https://www.vulncheck.com/advisories/pdf-shaper-buffer-overflow-via-convert-to-image-featurethird-party-advisory

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