Security Vulnerabilities
A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s rendering of Circle annotations with malformed Cloudy appearance streams in specially crafted PDF files. Insufficient validation of the appearance geometry can result in memory corruption and application crashes.
CVSS Score
7.8
EPSS Score
0.001
Published
2026-09-23
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s PDF page-tree handling. A specially crafted PDF can trigger page-structure changes during rendering, causing the application to access released page objects and resulting in memory corruption and an application crash.
CVSS Score
7.8
EPSS Score
0.001
Published
2026-09-23
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of PDF form fields. Embedded JavaScript may access form-field references after the corresponding fields have been released, resulting in an application crash.
CVSS Score
7.8
EPSS Score
0.001
Published
2026-09-23
A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor Reader’s handling of PDF image objects with inconsistent compression metadata. Insufficient validation during image decoding may result in an undersized buffer and an out-of-bounds read during rendering, causing an application crash.
CVSS Score
6.1
EPSS Score
0.001
Published
2026-09-23
When processing a specially crafted PDF, Foxit PDF Editor/Reader may perform reentrant zoom and layout operations through page- and annotation-related JavaScript actions. This can cause the application to access page objects after they have been released, resulting in a use-after-free condition and an application crash.
CVSS Score
7.8
EPSS Score
0.001
Published
2026-09-23
When opening a specially crafted PDF, Foxit PDF Editor/Reader executes scripts that modify annotation rich-text attributes containing malformed font data. During subsequent annotation appearance reconstruction, it accesses an object after it has been released, resulting in a use-after-free condition and an application crash.
CVSS Score
7.8
EPSS Score
0.001
Published
2026-09-23
Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.001
Published
2026-09-23
The interface of Foxit PDF Editor/Reader lacks the permission verification for secure reading mode, which allows specially crafted PDFs to trigger external SMB authentication without any security prompts and thereby leak the hash of the user's credentials.
CVSS Score
6.1
EPSS Score
0.001
Published
2026-09-23
Foxit PDF Editor/Reader failed to validate the directory traversal path in the attachment file name, resulting in malicious attachments being able to be written to directories outside the expected secure area when the PDF is opened.
CVSS Score
7.8
EPSS Score
0.002
Published
2026-09-23
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of JavaScript array objects. A specially crafted PDF may cause the application to access a released object during array processing, potentially resulting in application crashes or arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.001
Published
2026-09-23