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CVE-2026-91813

Foxit Pdf Editor remote code execution

8.8 HIGHEPSS 0.09%
  1. Published23 Sept 2026

Description

A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows an update package to be replaced between download and high-privilege extraction due to insufficient file locking and integrity validation. This could enable local attackers to execute arbitrary code with elevated 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

Affected products

Foxit Pdf Editor≥ 14.0.0.33046 ≤ 14.0.7.33751 · ≥ 2023.1.0.15510 ≤ 2023.3.0.23028 · ≥ 2024.1.0.23997 ≤ 2024.4.1.27687 · ≥ 2025.1.0.27937 ≤ 2025.3.0.35737
Foxit Pdf Reader≤ 2026.2.0.39747

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-2026-91813 being actively exploited?

CVE-2026-91813 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.09%.

How severe is CVE-2026-91813?

CVE-2026-91813 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.09% probability of exploitation.

Which products are affected by CVE-2026-91813?

Affected products include Foxit Pdf Editor, Foxit Pdf Reader.

How do I fix CVE-2026-91813?

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-2026-91813 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.