Description
A signature validation vulnerability exists in Foxit PDF Editor/Reader’s handling of incrementally updated PDF documents. Changes to visible document content may not invalidate the existing signature, allowing attackers to alter signed content and potentially carry out content spoofing while the document continues to appear validly signed.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Foxit Software | Foxit PDF Editor | Versions 2026.2 and earlier, Versions 14.0.7 and earlier, Versions 13.2.6 and earlier | — |
| Foxit Software | Foxit PDF Reader | Versions 2026.2 and earlier | — |
Advisories 1
- WID-SEC-2026-3525 Foxit PDF Reader und Foxit PDF Editor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 23, 2026