CVE-2026-91811

HighCVSS 7.8/10Last modified Oct 15, 2026

Description

A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	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

https://www.foxit.com/support/security-bulletins.htmlVendor Advisory

Timeline

Published: Sep 23, 2026
Last modified: Oct 15, 2026
NVD status: Undergoing Analysis

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