CVE-2026-57251: Foxit PDF Editor/Reader Cloud Appearance Buffer Overflow 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-129

Description

The application opens a PDF, but the cloud-like appearance of the construction process lacks proper setting of an upper limit and consistency checks. Out-of-bounds access to the underlying array is exposed, ultimately leading to a crash of the application.

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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