CVE-2026-91817

Published Sep 23, 2026

Last updated 14 days ago

Overview

Description
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.
Source
14984358-7092-470d-8f34-ade47a7658a2
NVD status
Analyzed
Products
pdf_editor, pdf_reader

Risk scores

CVSS 3.1

Type
Secondary
Base score
6.1
Impact score
4.2
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Severity
MEDIUM

Weaknesses

14984358-7092-470d-8f34-ade47a7658a2
CWE-125

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.