CVE-2009-4117: Sumatrapdfreader Sumatrapdf

High severity, CVSS 9.3. EPSS: 7.8% chance of exploitation in the next 30 days.

Multiple stack-based buffer overflows in pdf_shade4.c in MuPDF before commit 20091125231942, as used in SumatraPDF before 1.0.1, allow remote attackers to cause a denial of service and possibly execute arbitrary code via a /Decode array for certain types of shading that are not properly handled by the (1) pdf_loadtype4shade, (2) pdf_loadtype5shade, (3) pdf_loadtype6shade, and (4) pdf_loadtype7shade functions. NOTE: some of these details are obtained from third party information.

Affected products

• Sumatrapdfreader Sumatrapdf: up to and including 1.0; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2009-12-01. Last modified 2026-06-16.