What is CVE-2026-5941?

CVE-2026-5941 is a high-severity vulnerability in Foxit Pdf_editor, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2026-04-27.

How severe is CVE-2026-5941?

High severity. CVSS v3 base score is 7.8 out of 10.

Improper input validation in Foxit Pdf_editor

CVE-2026-5941

Parsing logic flaws cause non-signature data to be misidentified as valid signatures when processing malformed form field hierarchies, leading to invalid memory writes and program crashes during internal data structure construction.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.000 (9.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Foxit Pdf_editor
Foxit Pdf_reader
Foxit Software Inc. Pdf Editor — versions Versions 2026.1 and earlier, Versions 14.0.3 and earlier
Foxit Software Inc. Pdf Reader — versions Versions 2026.1 and earlier

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

14984358-7092-470d-8f34-ade47a7658a2 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-5941?: CVE-2026-5941 is a high-severity vulnerability in Foxit Pdf_editor, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2026-04-27.
How severe is CVE-2026-5941?: High severity. CVSS v3 base score is 7.8 out of 10.