High severity7.8NVD Advisory· Published Apr 27, 2026· Updated Apr 29, 2026

CVE-2026-5941

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Foxitsoftware/PDF Editor
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
Range: >=14.0.0,<14.0.4
Foxitsoftware/PDF Reader
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
Range: <2026.1.1

Patches

Vulnerability mechanics

References

www.foxit.com/support/security-bulletins.htmlnvdVendor Advisory

News mentions

ZDI-26-302: Foxit PDF Reader AcroForm Signature Use-After-Free Remote Code Execution Vulnerability
Zero Day Initiative · Apr 27, 2026

cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000