High severity7.8NVD Advisory· Published Sep 23, 2026· Updated Oct 15, 2026
CVE-2026-91811
CVE-2026-91811
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*range: <=13.2.5.63482
(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*range: <=2026.2.0.39747
Patches
Vulnerability mechanics
References
1- www.foxit.com/support/security-bulletins.htmlnvdVendor Advisory
News mentions
2- Foxit PDF Editor/Reader: 23 Vulnerabilities Disclosed in Single Batch, Affecting Multiple ComponentsVypr Intelligence · Sep 23, 2026
- ZDI-26-740: Foxit PDF Reader PRC Stream Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityZero Day Initiative · Sep 23, 2026