CVE-2026-91817

EUVD-2026-85157
A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of wide strings in embedded PDF JavaScript. Insufficient validation of string-deletion ranges can cause an integer underflow, resulting in an out-of-bounds read and application crash.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 4.45%
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