CVE-2026-91789: Out-of-bounds Write (CWE-787) in Foxit Software Inc. Foxit PDF Editor
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.
AI Analysis
Technical Summary
Foxit PDF Editor/Reader contains an out-of-bounds write vulnerability (CWE-787) in its U3D/GIF texture decoding path caused by insufficient validation of image dimensions and related size information. This can lead to an incorrectly sized memory allocation and subsequent out-of-bounds write during pixel processing. The flaw may enable remote code execution under certain conditions. The CVSS 3.1 score is 7.8, reflecting high impact on confidentiality, integrity, and availability. No patch or remediation details are provided in the source data.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code remotely by triggering a memory corruption condition during image processing. The vulnerability affects confidentiality, integrity, and availability of the affected system. However, exploitation requires local access and user interaction, and no known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid opening untrusted PDF files containing U3D/GIF textures and consider restricting user privileges to limit potential impact.
CVE-2026-91789: Out-of-bounds Write (CWE-787) in Foxit Software Inc. Foxit PDF Editor
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.
CVSS v3.1
Score 7.8high
Affected software
Foxit Software Inc.
Foxit PDF Editor
Foxit Software Inc.
Foxit PDF Reader
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Foxit PDF Editor/Reader contains an out-of-bounds write vulnerability (CWE-787) in its U3D/GIF texture decoding path caused by insufficient validation of image dimensions and related size information. This can lead to an incorrectly sized memory allocation and subsequent out-of-bounds write during pixel processing. The flaw may enable remote code execution under certain conditions. The CVSS 3.1 score is 7.8, reflecting high impact on confidentiality, integrity, and availability. No patch or remediation details are provided in the source data.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code remotely by triggering a memory corruption condition during image processing. The vulnerability affects confidentiality, integrity, and availability of the affected system. However, exploitation requires local access and user interaction, and no known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid opening untrusted PDF files containing U3D/GIF textures and consider restricting user privileges to limit potential impact.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Foxit
- Date Reserved
- 2026-09-15T07:34:40.287Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab387c8f7a7c541067c165f
Added to database: 09/23/2026, 08:03:20 UTC
Last enriched: 09/23/2026, 08:32:52 UTC
Last updated: 09/24/2026, 01:57:04 UTC
Views: 7
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