CVE-2026-91814Security vulnerability: Foxit PDF Editor/Reader Fails to Detect Modifications to Signed Documents Displaying Newly Added Content
Updated under an hour ago ()
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It affects Foxit Software Inc. Foxit PDF Editor and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-347
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Foxit
- NVD analysis
- Undergoing Analysis
- Record last updated
- Sep 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Foxit Software Inc. Foxit PDF Editor foxit_software:foxit_pdf_editor (from the name) | Versions 2026.2 and earlier; Versions 14.0.7 and earlier; Versions 13.2.6 and earlier | CNA record |
Foxit Software Inc. Foxit PDF Reader foxit_software:foxit_pdf_reader (from the name) | Versions 2026.2 and earlier | CNA record |
References
- https://www.foxit.com/support/security-bulletins.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.