CVE-2026-91801 Foxit PDF Editor/Reader - Path Traversal

Foxit PDF Editor/Reader contains a path traversal caused by insufficient validation of embedded PDF resource file paths, letting attackers write files outside intended locations, potentially enabling arbitrary code execution, exploit requires crafted PDF file.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.15% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Write, Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
23 September 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to the latest version of Foxit PDF Editor/Reader.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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