--- title: "CVE-2026-91800: Foxit PDF Editor - Privilege Escalation" description: "Foxit PDF Editor for macOS contains a local privilege escalation caused by insufficient validation of a user-modifiable configuration value during high-privilege upgrades, letting local attackers execute arbitrary commands with root privileges." url: https://panop.io/threat-heartbeat/CVE-2026-91800/ --- # CVE-2026-91800 Foxit PDF Editor - Privilege Escalation Foxit PDF Editor for macOS contains a local privilege escalation caused by insufficient validation of a user-modifiable configuration value during high-privilege upgrades, letting local attackers execute arbitrary commands with root privileges. CVSS base score 8.8 /10 High CISA KEV Not listed Public exploit None known Authentication Required EPSS 0.10% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-91800) ## Details Type Privilege Escalation Impact Privilege Escalation, Remote Code Execution CVSS vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Published 23 September 2026 Updated 15 October 2026 Weakness [CWE-732](https://cwe.mitre.org/data/definitions/732.html) ## Vendor fix Update to the latest version of Foxit PDF Editor for macOS. 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 - [https://nvd.nist.gov/vuln/detail/CVE-2026-91800](https://nvd.nist.gov/vuln/detail/CVE-2026-91800) - [https://www.foxit.com/support/security-bulletins.html](https://www.foxit.com/support/security-bulletins.html) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)