CVE-2025-6660: PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of GIF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26763.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch ZDI-CAN-26763 - Compensating control
Protect users by preventing opening untrusted PDF-XChange Editor documents (GIF-containing content) and block/inspect malicious web content until the affected PDF-XChange Editor version is patched; exploitation requires user interaction (visit a malicious page or open a malicious file).
Event History
Frequently Asked Questions
What is the severity of CVE-2025-6660?
CVE-2025-6660 has a high severity rating due to its potential to allow remote code execution.
How do I fix CVE-2025-6660?
To fix CVE-2025-6660, users should update to the latest version of PDF-XChange Editor provided by Tracker Software.
What type of vulnerability is CVE-2025-6660?
CVE-2025-6660 is a heap-based buffer overflow vulnerability that can lead to remote code execution.
Who is affected by CVE-2025-6660?
CVE-2025-6660 affects installations of PDF-XChange Editor where user interaction is required for exploitation.
What exploit does CVE-2025-6660 enable?
CVE-2025-6660 enables remote attackers to execute arbitrary code on affected systems.