CVE-2026-91817 MEDIUM

CVE-2026-91817: Foxit PDF Editor/Reader AcroForm Out-of-Bounds Read Remote Code Execution Vulnerability

Vendor Foxit Software Inc.
Product Foxit PDF Editor
Weakness CWE-125
Published September 23, 2026
Last update September 23, 2026
View on NVD All CVEs

CVSS base score

6.1/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 23, 2026 CVE published