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Vulnerability details: VCID-ker7-x9xt-s3d4
Vulnerability ID VCID-ker7-x9xt-s3d4
Aliases CVE-2021-20311
Summary A flaw was found in ImageMagick in versions before 7.0.11, where a division by zero in sRGBTransformImage() in the MagickCore/colorspace.c may trigger undefined behavior via a crafted image file that is submitted by an attacker processed by an application using ImageMagick. The highest threat from this vulnerability is to system availability.
Status Published
Exploitability 0.5
Weighted Severity 7.0
Risk 3.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-369 Divide By Zero
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-20311.json
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-20311
cvssv3.1 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.8 https://nvd.nist.gov/vuln/detail/CVE-2021-20311
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-20311
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-20311.json
https://api.first.org/data/v1/epss?cve=CVE-2021-20311
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20311
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1946739 https://bugzilla.redhat.com/show_bug.cgi?id=1946739
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
CVE-2021-20311 https://nvd.nist.gov/vuln/detail/CVE-2021-20311
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-20311.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2021-20311
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-20311
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.26795
EPSS Score 0.00091
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:37:03.727739+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.17/community.json 37.0.0