High severity · published Sep 23, 2026
CVE-2026-91800
Foxit PDF Editor installer local privilege escalation
8.8
CVSS
0.2%
EPSS
No
On KEV
Description
A local privilege escalation vulnerability exists in the installer of Foxit PDF Editor for macOS due to insufficient validation of a user-modifiable configuration value during high-privilege upgrades. A local attacker could exploit this issue to execute arbitrary commands with root privileges.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FP
Foxit PDF Editor · Foxit Software Inc.
Versions 2026.2 and earlier; Versions 14.0.7 and earlier · source: vendor
PE
Pdf Editor · Foxit
through 13.2.6.63484; 14.0.0.68868 through 14.0.7.69441; 2023.1.0.55583 through 2023.3.0.63083; 2024.1.0.63682 through 2024.4.1.66479; 2025.1.0.66692 through 2025.3.0.69570; 2026.1.0.70169 through 2026.2.0.72029 · source: NVD
PR
Pdf Reader · Foxit
through 2026.2.0.72029 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-91800
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-91800
Vendor Advisory
https://www.foxit.com/support/security-bulletins.html
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