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CVE-2017-5991

35
FAUCET Score

CVE-2017-5991 describes a NULL pointer dereference vulnerability in Artifex MuPDF versions prior to 1.11, specifically within the pdf_run_xobject function during a Fitz fz_paint_pixmap_with_mask operation. This flaw affects Artifex MuPDF and Debian Linux distributions utilizing the vulnerable MuPDF versions. Rated with a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, requiring no user interaction or privileges, and can lead to a denial of service (system crash or unresponsiveness). While not listed on the CISA KEV catalog or showing active exploitation, public exploit code (EDB-42138) is available, and its EPSS score indicates a higher-than-average likelihood of exploitation. There is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.11CPE matchmatch criteria
cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
15.18%
Probability of exploitation in next 30 days
EPSS Percentile
96.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-42138 · Jun 7, 2017
This CVE's current EPSS score of 0.1518 is in the 95th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

git.ghostscript.com
bugs.ghostscript.com / show_bug.cgi
ExploitThird Party Advisory
security.gentoo.org / glsa/201706-08
Third Party Advisory
exploit-db.com / exploits/42138
ExploitThird Party AdvisoryVDB Entry
debian.org / security/2017/dsa-3797
Third Party Advisory
securityfocus.com / bid/96213
Broken Link