CVE-2026-91812

Foxit PDF Editor/Reader FoxitUpdater Improper Certificate Validation Local Privilege Escalation Vulnerability

State: Published
Severity: 7.9 High
Published: Sep 23, 2026
Updated: Sep 23, 2026
Reserved: Sep 15, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.9 High	CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H	Foxit

Weaknesses

CWE-295 Improper Certificate Validation

Affected Products

Product	Versions
Foxit PDF EditorFoxit Software Inc.	Versions 2026.2 and earlierAffected Versions 14.0.7 and earlierAffected Versions 13.2.6 and earlierAffected
Foxit PDF ReaderFoxit Software Inc.	Versions 2026.2 and earlierAffected

References

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

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