CVE-2026-13127: Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-08 · updated 2026-07-09
Weakness: CWE-416

Description

The application opens the PDF file. JavaScript then rewrites the document to modify the page structure, resulting in the invalidation of the page objects. However, the thumbnails still use the invalid page objects, ultimately causing the application to crash.

Affected products

Foxit PDF Reader: through 13.2.4.24048; from 14.0.0.33046 through 14.0.4.33508; from 2023.1.0.15510 through 2023.3.0.23028; from 2024.1.0.23997 through 2024.4.1.27687; from 2025.1.0.27937 through 2025.3.0.35737; from 2026.1.0.36452 through 2026.1.1.36485
Foxit Pdf Reader: through 2026.1.1.36485

References

https://www.foxit.com/support/security-bulletins.html

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