CVE-2026-91811 HIGH

CVE-2026-91811: Foxit PDF Editor/Reader PRC Stream Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

Vendor Foxit Software Inc.
Product Foxit PDF Editor
Weakness CWE-787
Published September 23, 2026
Last update September 23, 2026
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash.

Key dates

02Disclosure timeline

September 23, 2026 CVE published