CVE-2026-5939CWE-416

UAF in Foxit PDF Editor/Reader via XFA calculate event

Medium · published April 27, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
5.1
In the wild
Unconfirmed
What it is

A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00162 · 5.1th percentile
Weakness
CWE-416 · Use After Free
Published
2026-04-27T11:00Z
EPSS history
Timeline
  • 27 APR 11:00Z
    UAF in Foxit PDF Editor/Reader via XFA calculate event
    cvelistv5