CVE-2026-57246
Received Received - Intake

Signature Verification Bypass in JavaScript Plugin

Publication date: 2026-07-08

Last updated on: 2026-07-08

Assigner: Foxit

Description
When dealing with abnormally constructed objects, there is a lack of argument validation; JavaScript triggers signature verification, but the signature plugin does not perform validation when copying the abnormal string, causing the application to crash.

CVSS Scores

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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-2026-57246
EUVD
EUVD-2026-42206

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
foxit pdf_reader to 2024.2.3.25184 (exc)
foxit pdf_editor to 2024.2.3.25184 (exc)
foxit pdf_editor to 2023.3.0.23028 (exc)
foxit pdf_editor to 13.1.3.22478 (exc)
foxit pdf_editor to 12.1.7.15526 (exc)
foxit pdf_editor to 11.2.10.53951 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

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Executive Summary

This vulnerability occurs when the application processes abnormally constructed objects without proper argument validation. Specifically, JavaScript triggers signature verification, but the signature plugin fails to validate when copying an abnormal string. This lack of validation causes the application to crash.

Impact Analysis

The vulnerability can cause the affected application to crash, leading to a denial of service. According to the CVSS score of 7.8, it has high impact on confidentiality, integrity, and availability, meaning it could potentially be exploited to cause significant disruption or damage.

Mitigation Strategies

To mitigate this vulnerability, users are advised to update their Foxit PDF Reader and Editor applications to the latest versions.

  • Use the application’s built-in update feature to obtain the latest version.
  • Alternatively, download the latest versions directly from the Foxit website.

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