CVE-2026-91817
Foxit PDF Editor/Reader AcroForm Out-of-Bounds Read Remote Code Execution Vulnerability
CVSS Score
6.1
EPSS Score
0.2%
EPSS Percentile
5th
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.
| CWE | CWE-125 |
| Vendor | foxit software inc. |
| Product | foxit pdf editor |
| Published | Sep 23, 2026 |
| Last Updated | Sep 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Affected Versions
Foxit Software Inc. / Foxit PDF Editor
Versions 2026.2 and earlier Versions 14.0.7 and earlier Versions 13.2.6 and earlier
Foxit Software Inc. / Foxit PDF Reader
Versions 2026.2 and earlier
References
Credits
Anonymous working with TrendAI Zero Day Initiative