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CVE-2026-91798

Privilege escalation

8.8 HIGHEPSS 0.10%
  1. Published23 Sept 2026

Description

A local privilege escalation vulnerability exists in the update daemon of Foxit PDF Editor/Reader due to an insecure permission configuration that allows the configuration file to be modified by regular users, which may lead to arbitrary script execution with higher privileges.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2026-91798 being actively exploited?

CVE-2026-91798 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.10%.

How severe is CVE-2026-91798?

CVE-2026-91798 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.10% probability of exploitation.

How do I fix CVE-2026-91798?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-91798 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.