A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of wide strings in embedded PDF JavaScript. Insufficient validation of string-deletion ranges can cause an integer underflow, resulting in an out-of-bounds read and application crash.

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Fixes

Solution

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Workaround

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History

Wed, 23 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 23 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of wide strings in embedded PDF JavaScript. Insufficient validation of string-deletion ranges can cause an integer underflow, resulting in an out-of-bounds read and application crash.
Title Foxit PDF Editor/Reader AcroForm Out-of-Bounds Read Remote Code Execution Vulnerability
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: Foxit

Published:

Updated: 2026-09-23T14:22:36.779Z

Reserved: 2026-09-15T07:34:45.816Z

Link: CVE-2026-91817

cve-icon Vulnrichment

Updated: 2026-09-23T14:22:05.705Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-23T08:17:14.010

Modified: 2026-09-23T17:58:26.570

Link: CVE-2026-91817

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T15:30:07Z

Weaknesses