CVE-2026-3779
Foxit PDF Editor/Reader List Box Calculate Array Use-After-Free Vulnerability
Description
The application's list box calculate array logic keeps stale references to page or form objects after they are deleted or re-created, which allows crafted documents to trigger a use-after-free when the calculation runs and can potentially lead to arbitrary code execution.
INFO
Published Date :
April 1, 2026, 2:16 a.m.
Last Modified :
April 28, 2026, 2:15 p.m.
Remotely Exploit :
No
Source :
14984358-7092-470d-8f34-ade47a7658a2
Affected Products
The following products are affected by CVE-2026-3779
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 14984358-7092-470d-8f34-ade47a7658a2 |
Solution
- Update object references during deletion or recreation.
- Ensure proper memory management for list box objects.
- Test application logic for stale references.
- Apply vendor patches if available.
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-2026-3779.
| URL | Resource |
|---|---|
| https://www.foxit.com/support/security-bulletins.html | Vendor Advisory |
| https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2365 | Third Party Advisory Exploit |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-3779 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-2026-3779
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-2026-3779 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-3779 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.
-
Initial Analysis by [email protected]
Apr. 28, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions from (including) 2023.1.0.15510 up to (including) 2023.3.0.23028 *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions from (including) 2024.1.0.23997 up to (including) 2024.4.1.27687 *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions up to (including) 13.2.2.24014 *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions from (including) 14.0.0.33046 up to (including) 14.0.2.33402 *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions from (including) 2025.1.0.27937 up to (including) 2025.3.0.35737 *cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* versions up to (including) 2025.3.0.35737 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions from (including) 2023.1.0.55583 up to (including) 2023.3.0.63083 *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions from (including) 2024.1.0.63682 up to (including) 2024.4.1.66479 *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions up to (including) 13.2.2.63349 *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions from (including) 14.0.0.68868 up to (including) 14.0.2.69164 *cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* versions from (including) 2025.1.0.66692 up to (including) 2025.3.0.69570 *cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* versions up to (including) 2025.3.0.69570 OR cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Added Reference Type Foxit: https://www.foxit.com/support/security-bulletins.html Types: Vendor Advisory Added Reference Type CVE: https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2365 Types: Exploit, Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Apr. 01, 2026
Action Type Old Value New Value Added Reference https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2365 -
New CVE Received by 14984358-7092-470d-8f34-ade47a7658a2
Apr. 01, 2026
Action Type Old Value New Value Added Description The application's list box calculate array logic keeps stale references to page or form objects after they are deleted or re-created, which allows crafted documents to trigger a use-after-free when the calculation runs and can potentially lead to arbitrary code execution. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-416 Added Reference https://www.foxit.com/support/security-bulletins.html