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Vulnerability record · CVE-2026-91812 · published 23 September 2026

CVE-2026-91812: Improper certificate validation vulnerability

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.

7.9 CVSS 3.1 High EPSS 0.08% · top 99.8% CWE-295 · Improper certificate validation Awaiting Analysis
7.9CVSS 3.1 base score
0.08%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
23 Sep 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

References

LinkTags
https://www.foxit.com/support/security-bulletins.html

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Source: NIST National Vulnerability Database (record CVE-2026-91812), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.