PT-2025-26905 · Unknown · Pdf-Xchange Editor

Suyue Guo · Published 2025-04-07 · Updated 2025-06-26 · CVE-2025-6661

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: PDF-XChange Editor (affected versions not specified)

Description: This issue allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this, where the target must visit a malicious page or open a malicious file. The flaw exists within the handling of App objects due to the lack of validating the existence of an object prior to performing operations on it. An attacker can leverage this to execute code in the context of the current process.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-08145

CVE-2025-6661

ZDI-25-446

Affected Products

Pdf-Xchange Editor

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2025-6661 · Security Note
• https://pdf-xchange.com/support/security-bulletins.html · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-25-446 · Security Note
• https://bdu.fstec.ru/vul/2025-08145 · Security Note
• https://osv.dev/vulnerability/CVE-2025-6661 · Vendor Advisory
• https://t.me/cvetracker/27070 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1938023788152574033 · Twitter Post
• https://twitter.com/CVEnew/status/1937992256889491855 · Twitter Post