CVE-2026-91812 Foxit PDF Editor/Reader - Man-in-the-Middle

Foxit PDF Editor/Reader contains a man-in-the-middle vulnerability caused by bypassing certificate validation and package integrity checks in the update mechanism, letting attackers execute arbitrary code with system privileges, exploit requires network interception.

CVSS base score 7.9 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Man-in-the-Middle
Impact
Remote Code Execution, Man In The Middle
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
23 September 2026
Updated
15 October 2026
Weakness
CWE-295

Vendor fix

Update to the latest version with fixed update mechanism.

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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