CVE-2026-91798
Received Received - Intake

Local Privilege Escalation in Foxit PDF Editor

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: Foxit

Description
A local privilege escalation vulnerability exists in the update daemon of Foxit PDF Editor/Reader due to an insecure permission configuration that allows the configuration file to be modified by regular users, which may lead to arbitrary script execution with higher privileges.

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Meta Information

Published
2026-09-23
Last Modified
2026-09-23
Generated
2026-09-23
AI Q&A
2026-09-23
EPSS Evaluated
N/A
NVD
CVE-2026-91798
EUVD
EUVD-2026-85167

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
foxit pdf_editor_reader *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-732 The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

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Executive Summary

This is a local privilege escalation vulnerability in Foxit PDF Editor/Reader caused by insecure permissions in the update daemon. A regular user can modify a configuration file, which may lead to running arbitrary scripts with elevated privileges.

Impact Analysis

An attacker with local access could exploit this to gain higher system privileges, potentially allowing them to install malware, access sensitive data, or perform unauthorized actions on your system.

Mitigation Strategies

Immediately restrict write permissions on the Foxit PDF Editor/Reader configuration file to prevent unauthorized modifications. Ensure only privileged users can alter it. Monitor for unusual script execution or privilege changes in the update daemon process.

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