$ cve CVE-2009-4117 JSON

CVE-2009-4117 EXPLOIT

9.3

HIGH · CVSS 2.0 · EPSS 7.8% (pctl 94)

Patch early

A public exploit exists.

Description

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.

Scoring

CVSS	9.3 (HIGH, v2.0)
Vector	AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS	7.78% — more likely to be exploited than 94% of all CVEs
Weakness	CWE-119
On CISA KEV	no
Public exploit	yes
Published	2009-12-01
Last modified	2026-06-16

Affected (1)

Vendor	Product
sumatrapdfreader	sumatrapdf

Public exploits

Source	Title	Date
exploit-db	MuPDF < 20091125231942 - 'pdf_shade4.c' Multiple Stack Buffer Overflows	2009-11-28

References

→ the Explorer · watch your stack · NVD