CVE-2026-91804
highA heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s rendering of Circle annotations with malformed Cloudy appearance streams in…
Vendor / product: Foxit — pdf editor
A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s rendering of Circle annotations with malformed Cloudy appearance streams in specially crafted PDF files. Insufficient validation of the appearance geometry can result in memory corruption and application crashes.
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: 2026-10-08 13:58
NVD status: Analyzed
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
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 ↗