CVE-2026-91812
Foxit PDF Editor/Reader FoxitUpdater Improper Certificate Validation Local Privilege Escalation Vulnerability
CVSS Score
7.9
EPSS Score
0.0%
EPSS Percentile
0th
A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows man-in-the-middle attackers to bypass certificate validation and package integrity checks, potentially enabling arbitrary code execution with system privileges.
| CWE | CWE-295 |
| Vendor | foxit software inc. |
| Product | foxit pdf editor |
| Published | Sep 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected 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
Credits
praydog & kmx00 working with TrendAI Zero Day Initiative