CVE-2016-6525
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF...
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a large decode array.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
9.8
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a large decode array.
- Record
CVE-2016-6525- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a large decode array.
- Record
CVE-2016-6525- Updated
- 2026-11-02
EUVDEUVD-2016-7446 No score
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a large decode array.
- Record
EUVD-2016-7446- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9g7x-w32v-gmpx
9.8
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF...
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a large decode array.
- Record
GHSA-9g7x-w32v-gmpx- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
OSV
9.8
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a large decode array.
- Record
CVE-2016-6525- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2016-6525
9.8
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a large decode array.
- Record
DEBIAN-CVE-2016-6525- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2016-6525
9.8
Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a large decode array.
- Record
UBUNTU-CVE-2016-6525- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVMGASA-2016-0286 No score
Updated mupdf packages fix security vulnerability
A flaw was discovered in the pdf_load_mesh_params() function allowing out-of-bounds write access to memory locations. With carefully crafted input, that could trigger a heap overflow, resulting in application crash or possibly having other unspecified impact (CVE-2016-6525).
Also, mupdf already contained the X11 viewer /usr/bin/mupdf-x11 but no mupdf binary to match the man page instructions. A symlink to mupdf-x11 now provides this (mga#19105).
- Record
MGASA-2016-0286- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mupdfDebian:12 |
before 1.9a+ds1-1.2 | 1.9a+ds1-1.2 |
mupdfDebian:13 |
before 1.9a+ds1-1.2 | 1.9a+ds1-1.2 |
mupdfDebian:14 |
before 1.9a+ds1-1.2 | 1.9a+ds1-1.2 |
mupdfDebian:7 |
before 0.9-2+deb7u3, plus listed versions 0.9-20.9-2+deb7u10.9-2+deb7u2 |
0.9-2+deb7u3 |
mupdfDebian:8 From an advisory covering 2 CVEs |
before 1.5-1+deb8u1, plus listed versions 1.5-1 |
1.5-1+deb8u1 |
mupdfMageia:5 |
before 1.5-4.4.mga5 | 1.5-4.4.mga5 |
mupdfUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 1.7-11.7a-11.7a-1ubuntu0.1~esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-6525 is a critical vulnerability (CVSS 9.8) in Artifex Mupdf, published August 8, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.77%, the 90th percentile. Fixed in mupdf 1.9a+ds1-1.2.
References
debian.org/security/2016/dsa-3655
openwall.com/lists/oss-security/2016/08/03/8
bugs.ghostscript.com/show_bug.cgi?id=696954
securityfocus.com/bid/92266
git.ghostscript.com?p=mupdf.git%3Bh=39b0f07dd960f34e7e6bf230ffc3d87c41ef0f2e
security.gentoo.org/glsa/201702-12
Show 11 moreShow less
nvd.nist.gov/vuln/detail/CVE-2016-6525
git.ghostscript.com?p=mupdf.git;h=39b0f07dd960f34e7e6bf230ffc3d87c41ef0f2e
github.com/advisories/GHSA-9g7x-w32v-gmpx
security-tracker.debian.org/tracker/CVE-2016-6525
advisories.mageia.org/MGASA-2016-0286.html
bugs.mageia.org/show_bug.cgi?id=19126
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6525
lwn.net/Alerts/696674
bugs.mageia.org/show_bug.cgi?id=19105
ubuntu.com/security/CVE-2016-6525
cve.org/CVERecord?id=CVE-2016-6525