Advisory Details

August 21st, 2025

Foxit PDF Reader Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability

ZDI-25-870
ZDI-CAN-25709

CVE ID CVE-2025-9330
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Foxit
AFFECTED PRODUCTS PDF Reader
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Foxit PDF Reader. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the Foxit Reader Update Service. The product loads a library from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

ADDITIONAL DETAILS Foxit has issued an update to correct this vulnerability. More details can be found at:
https://www.foxit.com/support/security-bulletins.html
DISCLOSURE TIMELINE
  • 2025-06-17 - Vulnerability reported to vendor
  • 2025-08-21 - Coordinated public release of advisory
  • 2025-08-21 - Advisory Updated
CREDIT Alexander Staalgaard
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