CVE-2026-91817

MEDIUMCVSS 6.1

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.

Timeline

Published:September 23rd, 2026 8:17 AM

Last modified:September 23rd, 2026 5:58 PM

CVSS Scoring

CVSS v3: 6.1 (MEDIUM)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Weaknesses (CWE)

CWE-125

References & Reports

Advisories, patches, and third-party reports

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

Source: NIST NVD · Data may lag official sources by up to one minute