PDF-XChange Editor 10.5.2.395 GIF File Parser heap-based overflow

Summaryinfo

A vulnerability categorized as critical has been discovered in PDF-XChange Editor 10.5.2.395. Affected by this issue is some unknown functionality of the component GIF File Parser. Executing a manipulation can lead to heap-based overflow. This vulnerability is registered as CVE-2025-6660. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in PDF-XChange Editor 10.5.2.395. This vulnerability affects an unknown functionality of the component GIF File Parser. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at zerodayinitiative.com. This vulnerability was named CVE-2025-6660 since 06/25/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Document Reader Software

Vendor

• PDF-XChange

Name

• Editor

Version

• 10.5.2.395

CPE 2.3info

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CPE 2.2info

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Entryinfo

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