CVE-2026-91803

HIGHCVSS 7.8/10EPSS 0.12%

Last modified

CVE-2026-91803 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A local privilege escalation vulnerability exists in the updater of Foxit PDF Editor/Reader due to unsafe loading of dynamic-link libraries from a user-writable directory during high-privilege operations. A local attacker could exploit this issue to execute code with elevated privileges.. EPSS estimates a 0.12% chance of exploitation in the next 30 days.

Description

A local privilege escalation vulnerability exists in the updater of Foxit PDF Editor/Reader due to unsafe loading of dynamic-link libraries from a user-writable directory during high-privilege operations. A local attacker could exploit this issue to execute code with elevated privileges.

Metrics

EPSS Probability
0.12%

1.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FoxitPdf Editor<= 13.2.5.63482
FoxitPdf Editor>= 14.0.0.33046, <= 14.0.7.33751
FoxitPdf Editor>= 2023.1.0.15510, <= 2023.3.0.23028
FoxitPdf Editor>= 2024.1.0.23997, <= 2024.4.1.27687
FoxitPdf Editor>= 2025.1.0.27937, <= 2025.3.0.35737
FoxitPdf Editor>= 2026.1.0.36452, <= 2026.2.0.39747
FoxitPdf Reader<= 2026.2.0.39747

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-91803?
A local privilege escalation vulnerability exists in the updater of Foxit PDF Editor/Reader due to unsafe loading of dynamic-link libraries from a user-writable directory during high-privilege operations. A local attacker could exploit this issue to execute code with elevated privileges.
How severe is CVE-2026-91803?
CVE-2026-91803 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.12% probability of exploitation in the next 30 days.
How do I fix CVE-2026-91803?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST