CVE-2026-91803: CWE-427: Uncontrolled Search Path Element in Foxit Software Inc. Foxit PDF Editor
A local privilege escalation vulnerability exists in the updater of Foxit PDF Editor/Reader due to unsafe loading of dynamic-link libraries from a user-writable directory during high-privilege operations. A local attacker could exploit this issue to execute code with elevated privileges.
AI Analysis
Technical Summary
This vulnerability involves an uncontrolled search path element (CWE-427) in the Foxit PDF Editor updater component. Specifically, the updater loads DLLs from directories writable by the user while performing high-privilege operations. This unsafe DLL loading can be exploited by a local attacker to escalate privileges by executing arbitrary code with elevated rights.
Potential Impact
Successful exploitation results in local privilege escalation, granting the attacker higher system privileges than originally assigned. This can lead to full system compromise, including confidentiality, integrity, and availability impacts as indicated by the CVSS vector (Confidentiality: High, Integrity: High, Availability: High).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-91803: CWE-427: Uncontrolled Search Path Element in Foxit Software Inc. Foxit PDF Editor
Description
A local privilege escalation vulnerability exists in the updater of Foxit PDF Editor/Reader due to unsafe loading of dynamic-link libraries from a user-writable directory during high-privilege operations. A local attacker could exploit this issue to execute code with elevated privileges.
CVSS v3.1
Score 8.8high
Affected software
Foxit Software Inc.
Foxit PDF Editor
Foxit Software Inc.
Foxit PDF Reader
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an uncontrolled search path element (CWE-427) in the Foxit PDF Editor updater component. Specifically, the updater loads DLLs from directories writable by the user while performing high-privilege operations. This unsafe DLL loading can be exploited by a local attacker to escalate privileges by executing arbitrary code with elevated rights.
Potential Impact
Successful exploitation results in local privilege escalation, granting the attacker higher system privileges than originally assigned. This can lead to full system compromise, including confidentiality, integrity, and availability impacts as indicated by the CVSS vector (Confidentiality: High, Integrity: High, Availability: High).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Foxit
- Date Reserved
- 2026-09-15T07:34:43.393Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab387caf7a7c541067c166e
Added to database: 09/23/2026, 08:03:22 UTC
Last enriched: 09/23/2026, 08:18:59 UTC
Last updated: 09/24/2026, 01:57:04 UTC
Views: 8
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