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CVE-2018-16643

23
FAUCET Score

CVE-2018-16643 is a denial-of-service vulnerability in ImageMagick 7.0.8-4, specifically affecting its image processing functions for DCM, PWP, CALS, and PICT file formats. The vulnerability stems from a failure to check the return value of the fputc function, allowing remote attackers to crash the application via a specially crafted image file. Rated Medium with a CVSS score of 6.5, this vulnerability has a network attack vector and low attack complexity, leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.0.8-4CPE matchmatch criteria
cpe:2.3:a:imagemagick:imagemagick:7.0.8-4:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.08%
Probability of exploitation in next 30 days
EPSS Percentile
86.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0308 is in the 94th percentile among its peer group of 26,221 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (7)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: autotrace-0:0.31.1-38.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: emacs-1:24.3-23.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ImageMagick-0:6.9.10.68-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: inkscape-0:0.92.2-3.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ImageMagick
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ImageMagick

Vendor Advisories (1)

redhatCVE-2018-16643Low

ImageMagick: missing check for fputc function in multiple files

Jul 5, 2018

References

github.com / ImageMagick/ImageMagick/commit/6b6bff054d569a77973f2140c0e86366e6168a6c
PatchThird Party Advisory
github.com / ImageMagick/ImageMagick/issues/1199
Issue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/10/msg00002.html
Third Party Advisory
lists.debian.org / debian-lts-announce/2020/09/msg00007.html
usn.ubuntu.com / 3785-1
Third Party Advisory