Heap-based Buffer Overflow in PDF-XChange Editor Allows Remote Code Execution
CVE-2025-6660

7.8HIGH

Key Information:

Vendor

PDF-xchange
Status
PDF-xchange Editor
Vendor
CVE Published:
25 June 2025

What is CVE-2025-6660?

A buffer overflow vulnerability exists in PDF-XChange Editor caused by inadequate validation of GIF file data. This flaw allows attackers to execute arbitrary code if a user interacts with a malicious GIF file or visits a compromised web page. The vulnerability arises from improper handling of user-supplied data, which can lead to severe security breaches when exploited.

Affected Version(s)

PDF-XChange Editor 10.5.2.395

References

https://www.zerodayinitiative.com/advisories/ZDI-25-443/
x_research-advisory
https://www.pdf-xchange.com/support/security-bulletins.html
vendor-advisory

CVSS V3.0

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-6660 : Heap-based Buffer Overflow in PDF-XChange Editor Allows Remote Code Execution