CVE-2026-91811
highA heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s PRC parser due to insufficient validation of vertex indices in triangular fa…
Vendor / product: Foxit — pdf editor
A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash.
CVSS
7.8
7.8 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (14984358-7092-470d-8f34-ade47a7658a2)
Timeline (UTC)
Published: 2026-09-23 08:17
Modified: 2026-10-15 14:10
NVD status: Undergoing Analysis
Last synced 2 days ago
Verified against the source API 2026-10-27 06:55 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 2026-10-27 06:55 UTC · record ↗