CVE-2016-9556

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.9% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2017-03-23 18:00Z9 YR AGO

Last updated

2024-08-06 02:50Z2 YR AGO

Reserved

2016-11-22

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

679317cf11081cbfac8bf75ba09df7d186b3eeb634e1030a76b5483686c63076

• www.securityfocus.com94492http://www.securityfocus.com/bid/94492vdb-entryx_refsource_BID
• github.comhttps://github.com/ImageMagick/ImageMagick/commit/ce98a7acbcfca7f0a178f4b1e7b957e419e0cc99x_refsource_CONFIRM
• blogs.gentoo.orghttps://blogs.gentoo.org/ago/2016/11/19/imagemagick-heap-based-buffer-overflow-in-ispixelgray-pixel-accessor-hx_refsource_MISC
• lists.opensuse.orgopenSUSE-SU-2016:3024http://lists.opensuse.org/opensuse-updates/2016-12/msg00040.htmlvendor-advisoryx_refsource_SUSE
• www.openwall.com[oss-security] 20161122 Re: imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h)http://www.openwall.com/lists/oss-security/2016/11/23/1mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20161202 Re: Re: imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h) (Incomplete fix for CVE-2016-9556)http://www.openwall.com/lists/oss-security/2016/12/02/12mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20161201 imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h) (Incomplete fix for CVE-2016-9556)http://www.openwall.com/lists/oss-security/2016/12/01/4mailing-listx_refsource_MLIST
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1398198x_refsource_CONFIRM
• www.debian.orgDSA-3726http://www.debian.org/security/2016/dsa-3726vendor-advisoryx_refsource_DEBIAN