CVE-2026-57240
Received Received - Intake

Memory Corruption in PDF Viewer Due to Invalid Pointer References

Publication date: 2026-07-08

Last updated on: 2026-07-08

Assigner: Foxit

Description
When the application opens a PDF file and JavaScript deletes the PDF fields, the subsequent logic still uses the old field pointers, resulting in invalid pointer references and causing the application to crash.

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Meta Information

Published
2026-07-08
Last Modified
2026-07-08
Generated
2026-07-08
AI Q&A
2026-07-08
EPSS Evaluated
N/A
NVD
CVE-2026-57240
EUVD
EUVD-2026-42183

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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Executive Summary

This vulnerability occurs when an application opens a PDF file and JavaScript within the PDF deletes PDF fields. Despite the deletion, the application's subsequent logic continues to use the old field pointers. These pointers become invalid references, which causes the application to crash.

Impact Analysis

The impact of this vulnerability is that the application may crash due to invalid pointer references after PDF fields are deleted by JavaScript. This can lead to denial of service or interruption of normal application functionality.

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