CVE-2026-91811: CWE-787: Out-of-bounds Write in Foxit Software Inc. Foxit PDF Editor
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-91811) involves an out-of-bounds write on the heap within Foxit PDF Editor/Reader's PRC parser component. The root cause is inadequate validation of vertex indices used in triangular fan texture meshes, which can lead to memory corruption. Successful exploitation may result in application crashes and potentially compromise confidentiality, integrity, and availability as indicated by the CVSS vector. No information about affected versions or patches is currently available.
Potential Impact
The vulnerability allows an attacker to cause memory corruption and application crashes by exploiting the out-of-bounds write. The CVSS score of 7.8 indicates high impact on confidentiality, integrity, and availability. There is no evidence of known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Users should monitor Foxit Software Inc. advisories for updates and apply patches once available.
CVE-2026-91811: CWE-787: Out-of-bounds Write in Foxit Software Inc. Foxit PDF Editor
Description
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.
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
This vulnerability (CVE-2026-91811) involves an out-of-bounds write on the heap within Foxit PDF Editor/Reader's PRC parser component. The root cause is inadequate validation of vertex indices used in triangular fan texture meshes, which can lead to memory corruption. Successful exploitation may result in application crashes and potentially compromise confidentiality, integrity, and availability as indicated by the CVSS vector. No information about affected versions or patches is currently available.
Potential Impact
The vulnerability allows an attacker to cause memory corruption and application crashes by exploiting the out-of-bounds write. The CVSS score of 7.8 indicates high impact on confidentiality, integrity, and availability. There is no evidence of known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Users should monitor Foxit Software Inc. advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Foxit
- Date Reserved
- 2026-09-15T07:34:45.815Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab387ccf7a7c541067c1676
Added to database: 09/23/2026, 08:03:24 UTC
Last enriched: 09/23/2026, 08:18:09 UTC
Last updated: 09/24/2026, 03:59:14 UTC
Views: 10
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