CVE-2026-5941
Received Received - Intake
Invalid Memory Write in Form Field Parsing Causes Program Crash

Publication date: 2026-04-27

Last updated on: 2026-04-29

Assigner: Foxit

Description
Parsing logic flaws cause non-signature data to be misidentified as valid signatures when processing malformed form field hierarchies, leading to invalid memory writes and program crashes during internal data structure construction.
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Meta Information
Published
2026-04-27
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-04-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-5941
EUVD
EUVD-2026-25827
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
foxit pdf_editor From 14.0.0 (inc) to 14.0.4 (exc)
foxit pdf_editor From 2023.0.0 (inc) to 2026.1.1 (exc)
foxit pdf_reader to 2026.1.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability is caused by flaws in the parsing logic that lead to non-signature data being incorrectly identified as valid signatures. This happens when processing malformed form field hierarchies, which results in invalid memory writes and program crashes during the construction of internal data structures.

Impact Analysis

The vulnerability can cause program crashes and invalid memory writes, which may lead to denial of service or potentially allow an attacker to execute arbitrary code or corrupt data. The CVSS score indicates high impact on confidentiality, integrity, and availability.

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