CVE-2026-91803

EUVD-2026-85166
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 1.61%
Affected Products (NVD)
VendorProductVersion
foxitpdf_editor
𝑥
≤ 13.2.5.63482
foxitpdf_editor
14.0.0.33046 ≤
𝑥
≤ 14.0.7.33751
foxitpdf_editor
2023.1.0.15510 ≤
𝑥
≤ 2023.3.0.23028
foxitpdf_editor
2024.1.0.23997 ≤
𝑥
≤ 2024.4.1.27687
foxitpdf_editor
2025.1.0.27937 ≤
𝑥
≤ 2025.3.0.35737
foxitpdf_editor
2026.1.0.36452 ≤
𝑥
≤ 2026.2.0.39747
foxitpdf_reader
𝑥
≤ 2026.2.0.39747
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.foxit.com/support/security-bulletins.html