CVE-2026-91789
Received Received - Intake

Out-of-Bounds Write in Foxit PDF Editor/Reader

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: Foxit

Description
Foxit PDF Editor/Reader’s U3D/GIF texture decoding path contained insufficient validation of image dimensions and related size information. Under certain conditions, this could lead to an incorrectly sized memory allocation and a subsequent out-of-bounds write during pixel processing, potentially resulting in remote code execution.

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Meta Information

Published
2026-09-23
Last Modified
2026-09-23
Generated
2026-09-23
AI Q&A
2026-09-23
EPSS Evaluated
N/A
NVD
CVE-2026-91789
EUVD
EUVD-2026-85155

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
foxit pdf_editor *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability involves insufficient validation of image dimensions in Foxit PDF Editor/Reader's U3D/GIF texture decoding. This can lead to incorrect memory allocation and an out-of-bounds write during pixel processing, potentially allowing remote code execution.

Impact Analysis

If exploited, this vulnerability could allow attackers to execute arbitrary code on your system remotely. This may lead to unauthorized access, data theft, or system compromise if you use vulnerable versions of Foxit PDF Editor or Reader.

Compliance Impact

This vulnerability could lead to remote code execution, which may result in unauthorized access to sensitive data. This could impact compliance with GDPR by risking data breaches and HIPAA by exposing protected health information.

Mitigation Strategies

Update Foxit PDF Editor/Reader to the latest version to ensure the vulnerability is patched. Avoid opening untrusted PDF files, especially those containing U3D or GIF content. Disable automatic rendering of PDFs from untrusted sources if possible.

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