CVE-2026-91794 Foxit PDF Editor/Reader - Out-of-Bounds Write

Foxit PDF Editor/Reader contains an out-of-bounds write vulnerability caused by insufficient boundary validation in the PDF rendering process when handling malformed color space data, letting remote attackers cause crashes and potentially execute code.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.16% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out-of-Bounds Write
Impact
Remote Code Execution, Denial Of Service
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-787

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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