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CVE-2026-91798

Foxit PDF Editor/Reader Updater Privilege Escalation

HIGH
8.8
CVSS Score
Published: September 23, 2026 at 07:50 AM UTC
Updated: September 23, 2026 at 06:20 PM UTC
2 products affected across 1 vendorPDF ReaderPDF Editor

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Severity
HIGH8.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PDF Editor· Foxitsoftware
60%
v ≤ 13.2.6v ≤ 14.0.7v ≤ 2026.2
PDF Reader· Foxitsoftware
60%
v ≤ 2026.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://www.foxit.com/support/security-bulletins.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHFoxit
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusUNDERGOING ANALYSIS
CWE
CWE-732

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