CVE-2026-3777 Details
Description
The application does not properly validate the lifetime and validity of internal view cache pointers after JavaScript changes the document zoom and page state. When a script modifies the zoom property and then triggers a page change, the original view object may be destroyed while stale pointers are still kept and later dereferenced, which under crafted JavaScript and document structures can lead to a use-after-free condition and potentially allow arbitrary code execution.
A use-after-free vulnerability has been identified in Foxit PDF Reader and Foxit PDF Editor. This issue arises when the application fails to properly validate the lifetime and validity of internal view cache pointers after JavaScript modifies the document zoom and page state. Consequently, stale pointers may be dereferenced, leading to a use-after-free condition. Under certain conditions, this vulnerability could be exploited to execute arbitrary code.
Users can update to Foxit PDF Reader or Foxit PDF Editor version 2026.1 or later. Instructions for updating are available on the Foxit website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.foxit.com/support/security-bulletins.html | Foxit | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | Foxit |
Affected Products
| Product | Versions |
|---|---|
| foxit pdf editor | <= 13.2.2.24014 >= 14.0.0.33046, <= 14.0.2.33402 >= 2023.1.0.15510, <= 2023.3.0.23028 >= 2024.1.0.23997, <= 2024.4.1.27687 >= 2025.1.0.27937, <= 2025.3.0.35737 <= 13.2.2.63349 >= 14.0.0.68868, <= 14.0.2.69164 >= 2023.1.0.55583, <= 2023.3.0.63083 >= 2024.1.0.63682, <= 2024.4.1.66479 >= 2025.1.0.66692, <= 2025.3.0.69570 |
CPE
Remediation
| |
| foxit pdf reader | <= 2025.3.0.35737 <= 2025.3.0.69570 |
CPE
Remediation
| |
| microsoft windows | All versions |
CPE
Remediation
| |
| apple macos | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | Foxit |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 14, 2026 | Initial Analysis | [email protected] |
| Apr 1, 2026 | New CVE Received | Foxit |