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Description

When the application opens a PDF and executes JavaScript, it performs abnormal operations on the list box field, and this operation is repeated after the form is reset. During this process, the application failed to adequately verify the validity of the form objects and their internal dictionary pointers, resulting in accessing internal members of invalid or improperly initialized fields. This led to an illegal pointer read, ultimately causing the application to crash.

PUBLISHED Reserved 2026-06-24 | Published 2026-07-08 | Updated 2026-07-09 | Assigner Foxit




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Problem types

CWE-416 Use after free

Product status

Default status
unaffected

Versions 2026.1.1 and earlier
affected

Versions 14.0.4 and earlier
affected

Versions 13.2.4 and earlier
affected

Default status
unaffected

Versions 2026.1.1 and earlier
affected

Versions 14.0.3 and earlier
affected

Default status
unaffected

Versions 2026.1.1 and earlier
affected

Credits

KPC of Cisco Talos finder

References

www.talosintelligence.com/...ability_reports/TALOS-2026-2420

www.foxit.com/support/security-bulletins.html

cve.org (CVE-2026-57256)

nvd.nist.gov (CVE-2026-57256)

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