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CVE-2016-6525

32
FAUCET Score

CVE-2016-6525 is a critical heap-based buffer overflow vulnerability in the pdf_load_mesh_params function of MuPDF, affecting Artifex MuPDF and Debian Linux. This flaw allows remote attackers to trigger a denial of service or execute arbitrary code by supplying a large decode array in a PDF file. With a CVSS score of 9.8 (CRITICAL), it presents a high-impact, low-complexity attack vector requiring no user interaction or privileges. Despite its severity, there is no evidence of active exploitation, publicly available exploit code in Metasploit, Nuclei, or ExploitDB, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
<= 1.9CPE matchmatch criteria
cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.77%
Probability of exploitation in next 30 days
EPSS Percentile
88.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0377 is in the 82nd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugs.ghostscript.com / show_bug.cgi
PatchThird Party Advisory
git.ghostscript.com
security.gentoo.org / glsa/201702-12
debian.org / security/2016/dsa-3655
Third Party Advisory
openwall.com / lists/oss-security/2016/08/03/8
Patch
securityfocus.com / bid/92266
Third Party Advisory