CVE-2026-91798

Summary

A local privilege escalation vulnerability exists in the update daemon of Foxit PDF Editor/Reader due to an insecure permission configuration that allows the configuration file to be modified by regular users, which may lead to arbitrary script execution with higher privileges.

Affected Software

VendorProductVersion RangeStatus
Foxit Software Inc.Foxit PDF EditorVersions 2026.2 and earlieraffected
Foxit Software Inc.Foxit PDF EditorVersions 14.0.7 and earlieraffected
Foxit Software Inc.Foxit PDF EditorVersions 13.2.6 and earlieraffected
Foxit Software Inc.Foxit PDF ReaderVersions 2026.2 and earlieraffected

Weaknesses

  • CWE-732: CWE-732: Incorrect Permission Assignment for Critical Resource

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References