CVE-2026-91800Hinoki check available

Root command execution via unvalidated upgrade configuration

Published Sep 23, 2026 · Updated Sep 23, 2026

Privilege escalation in Foxit PDF Editor for Mac before 14.0.8 or 2026.2.1 allows local users to execute arbitrary commands as root. During a high-privilege upgrade, the installer insufficiently validates a configuration value that an unprivileged user can modify before privileged processing. A low-privileged local account must alter that value before an upgrade processes it; successful exploitation grants root command execution.

CVSS severity8.8
High
EPSS probability0.10%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Privilege escalation in Foxit PDF Editor for Mac before 14.0.8 or 2026.2.1 allows local users to execute arbitrary commands as root. During a high-privilege upgrade, the installer insufficiently validates a configuration value that an unprivileged user can modify before privileged processing. A low-privileged local account must alter that value before an upgrade processes it; successful exploitation grants root command execution.

The record

CVE
CVE-2026-91800
Published
Sep 23, 2026
Updated
Sep 23, 2026
Vendor
Foxit Software Company
Product
Foxit PDF Editor
Classifications
CWE-732, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Versions 14.0.7 and earlier
  2. Affected versionversion=Versions 2026.2 and earlier

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Foxit Software Company · Foxit PDF Editorversion=Versions 14.0.7 and earlier; version=Versions 2026.2 and earlier

Published CVSS scores

8.8Foxit SoftwareCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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