High severity7.8NVD Advisory· Published Sep 23, 2026· Updated Oct 8, 2026
CVE-2026-91816
CVE-2026-91816
Description
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of PDF annotations. Reentrant annotation deletion triggered by embedded JavaScript can cause the application to access an annotation object after it has been released, resulting in a use-after-free condition and application crash.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3Patches
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-26-744: Foxit PDF Reader AcroForm Use-After-Free Remote Code Execution VulnerabilityZero Day Initiative · Sep 23, 2026