CVE-2026-91817 - Foxit PDF Editor/Reader AcroForm Out-of-Bounds Read Remote Code Execution Vulnerability

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MEDIUM

Foxit PDF Editor/Reader AcroForm Out-of-Bounds Read Remote Code Execution Vulnerability

Published Sep 23, 2026

6.1

MEDIUM

CVSS 3.1

EPSS 0.11%

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.

Affected products

Vendor Foxit Software Inc. Product Foxit PDF Editor Default
unaffected
Affected
- Versions 13.2.6 and earlier
- Versions 14.0.7 and earlier
- Versions 2026.2 and earlier
Vendor Foxit Software Inc. Product Foxit PDF Reader Default
unaffected
Affected
- Versions 2026.2 and earlier

Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).

Vendor	Product	Default status	Versions
Foxit Software Inc.	Foxit PDF Editor	unaffected	Affected Versions 13.2.6 and earlier Versions 14.0.7 and earlier Versions 2026.2 and earlier
Foxit Software Inc.	Foxit PDF Reader	unaffected	Affected Versions 2026.2 and earlier

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-125

Out-of-bounds Read

References (2)

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-85157		Advisory
https://www.foxit.com/support/security-bulletins.html

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner Foxit

Published Sep 23, 2026

Updated Sep 23, 2026

Reserved Sep 15, 2026

Link CVE-2026-91817

CISA Vulnrichment

Updated Sep 23, 2026

NVD

Status Awaiting Analysis

Modified Sep 23, 2026

Link CVE-2026-91817

Red Hat

No data

ENISA EUVD

Assigner Foxit

Published Sep 23, 2026

Updated Sep 23, 2026

Link EUVD-2026-85157

GitHub

No data