CVE-2026-91795 Foxit PDF Editor/Reader - Remote Code Execution

Foxit PDF Editor/Reader contains a buffer overflow caused by inadequate validation of encryption metadata in FileOpen plugin, letting attackers execute arbitrary code via specially crafted PDF files, exploit requires crafted PDF file.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.08% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
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-822

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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