MajorCritical vulnerability

CVE-2026-91813 (CVSS 8.8)

NVD · officialPublished Sep 23, 2026Risk 37/100EPSS 0.1%

A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows an update package to be replaced between download and high-privilege extraction due to insufficient file locking and integrity validation. This could enable local attackers to execute arbitrary code with elevated privileges.

Technical details

CVSS

8.8

AV:LocalAC:LowPR:LowUI:NoneC:HighI:HighA:High

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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