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CVE-2025-9330: Foxit PDF Reader Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-02 · updated 2026-06-17
• Weakness: CWE-427

Description

Foxit PDF Reader Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability. 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. Was ZDI-CAN-25709.

Affected products

• Foxit PDF Reader: through 13.1.7.23637; from 2023.1.0.15510 through 2023.3.0.23028; from 2024.1.0.23997 through 2024.4.1.27687; 2025.1.0.27937
• Foxit Pdf Reader: through 2025.1.0.27937

References

• https://www.foxit.com/support/security-bulletins.html
• https://www.zerodayinitiative.com/advisories/ZDI-25-870/

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