CVE-2026-57246

Analyzed Analyzed - Analysis Complete

Signature Verification Bypass in JavaScript Plugin

Publication date: 2026-07-08

Last updated on: 2026-07-09

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

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-08

Last Modified

2026-07-09

Generated

2026-07-15

AI Q&A

2026-07-08

EPSS Evaluated

2026-07-14

NVD

CVE-2026-57246

EUVD

EUVD-2026-42206

Affected Vendors & Products

Vendor	Product	Version / Range
foxit	pdf_editor	From 2023.1.0.15510 (inc) to 2023.3.0.23028 (inc)
foxit	pdf_editor	From 2024.1.0.23997 (inc) to 2024.4.1.27687 (inc)
foxit	pdf_editor	From 2025.1.0.27937 (inc) to 2025.3.0.35737 (inc)
foxit	pdf_editor	From 2026.1.0.36452 (inc) to 2026.1.1.36485 (inc)
foxit	pdf_reader	to 2026.1.1.36485 (inc)
foxit	pdf_editor	to 13.2.4.24048 (inc)
foxit	pdf_editor	From 14.0.0.33046 (inc) to 14.0.4.33508 (inc)

Helpful Resources

Exploitability

CWE

KEV

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

Compliance Impact

The provided information does not specify how this vulnerability impacts compliance with common standards and regulations such as GDPR or HIPAA.

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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