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Fencer Vulns
high 8.8

CVE-2016-6491 json

Buffer overflow in the Get8BIMProperty function in MagickCore/property.c in ImageMagick before 6.9.5-4 and 7.x before 7.0.2-6 allows remote…

published 2016-12-13 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7413

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.0%
EPSS 5.0% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Buffer overflow in the Get8BIMProperty function in MagickCore/property.c in ImageMagick before 6.9.5-4 and 7.x before 7.0.2-6 allows remote attackers to cause a denial of service (out-of-bounds read, memory leak, and crash) via a crafted image.

Patch / fix

  • imagemagick Debian 14, Debian 13, Debian 12 8:6.9.6.2+dfsg-2

debian advisories DEBIAN-CVE-2016-6491

  • imagemagick Ubuntu 14.04 LTS 8:6.7.7.10-6ubuntu3.2
  • imagemagick Ubuntu 16.04 LTS 8:6.8.9.9-7ubuntu5.2

ubuntu advisories UBUNTU-CVE-2016-6491

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ImageMagick SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 6.4.3.6-7.48.1
  • ImageMagick SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +2 more 6.8.8.1-33.1

suse advisories SUSE-SU-2016:2075-1SUSE-SU-2016:2076-1

  • imagemagick Alpine 3.3, Alpine 3.2 6.9.6.8-r0
  • imagemagick Alpine 3.4 6.9.5.3

alpine advisories ALPINE-CVE-2016-6491

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-6491 updated cvss 4.0

ImageMagick: Out-of-bounds read in CopyMagickMemory

  • Red Hat Enterprise Linux 6 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat Enterprise Linux 7 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat OpenShift Enterprise 2 ImageMagick
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 ImageMagick
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.02% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • openwall.com http://www.openwall.com/lists/oss-security/2016/07/28/13 referenced PoC, tagged "exploit" by a source, unverified
  • openwall.com http://www.openwall.com/lists/oss-security/2016/07/28/15 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.