CVE-2026-91814
mediumA signature validation vulnerability exists in Foxit PDF Editor/Reader’s handling of incrementally updated PDF documents.
Vendor / product: Foxit — pdf editor
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
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-09-23 08:17
Modified: 2026-10-29 17:15
NVD status: Analyzed
Last synced 5 hours ago
Verified against the source API 2026-10-29 17:16 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
foxit / pdf_editor ≤13.2.5.63482, ≥14.0.0.33046 ≤14.0.7.33751, ≥2023.1.0.15510 ≤2023.3.0.23028, ≥2024.1.0.23997 ≤2024.4.1.27687, ≥2025.1.0.27937 ≤2025.3.0.35737, ≥2026.1.0.36452 ≤2026.2.0.39747
foxit / pdf_reader ≤2026.2.0.39747, ≤2026.2.1.39815
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://www.foxit.com/support/security-bulletins.html
References
- https://www.foxit.com/support/security-bulletins.html 14984358-7092-470d-8f34-ade47a7658a2
Data sources
NVD CVE API 2.0 — fetched 2026-10-29 17:16 UTC · record ↗