5.5
MEDIUM CVSS 3.1
CVE-2026-5938
Foxit PDF Editor/Reader Infinite Loop Denial-of-Service Vulnerability
Description

Improper control flow management allows a crafted document action chain to cause modal dialog reentry on the main thread, resulting in UI freeze and denial of service.

INFO

Published Date :

April 27, 2026, 12:16 p.m.

Last Modified :

April 27, 2026, 12:16 p.m.

Remotely Exploit :

No

Source :

14984358-7092-470d-8f34-ade47a7658a2
Affected Products

The following products are affected by CVE-2026-5938 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 14984358-7092-470d-8f34-ade47a7658a2
CVSS 3.1 MEDIUM MITRE-CVE
Solution
Address improper control flow to prevent modal dialog reentry and UI freeze.
  • Review and correct control flow logic.
  • Validate document action chain handling.
  • Implement thread safety measures.
  • Test thoroughly for reentry vulnerabilities.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-5938.

URL Resource
https://www.foxit.com/support/security-bulletins.html
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-5938 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-5938 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-5938 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-5938 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 14984358-7092-470d-8f34-ade47a7658a2

    Apr. 27, 2026

    Action Type Old Value New Value
    Added Description Improper control flow management allows a crafted document action chain to cause modal dialog reentry on the main thread, resulting in UI freeze and denial of service.
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Added CWE CWE-691
    Added Reference https://www.foxit.com/support/security-bulletins.html
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.