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Vulnerability · Published Apr 1, 2026 · Assigned by Foxit

CVE-2026-3777Use after free of view cache in Foxit PDF Editor/Reader

Medium 5.5

In plain English

A medium-severity use-after-free in Foxit PDF Editor from Foxit Software Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.1%top 97.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Foxit Software Inc. Foxit PDF Editor Versions 2025.3 and earlierVersions 14.0.2 and earlierVersions 13.2.2 and earlier
Foxit Software Inc. Foxit PDF Reader Versions 2025.3 and earlier

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References