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Vulnerability details: VCID-vekw-ewkt-r3eq
Vulnerability ID VCID-vekw-ewkt-r3eq
Aliases CVE-2020-18032
Summary Buffer Overflow in Graphviz Graph Visualization Tools from commit ID f8b9e035 and earlier allows remote attackers to execute arbitrary code or cause a denial of service (application crash) by loading a crafted file into the "lib/common/shapes.c" component.
Status Published
Exploitability 0.5
Weighted Severity 7.0
Risk 3.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-193 Off-by-one Error
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
System Score Found at
cvssv3 7.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-18032.json
epss 0.00408 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00408 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00408 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00408 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00408 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00408 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00408 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
epss 0.00469 https://api.first.org/data/v1/epss?cve=CVE-2020-18032
cvssv3.1 9.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2020-18032
cvssv3.1 7.8 https://nvd.nist.gov/vuln/detail/CVE-2020-18032
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-18032.json
https://api.first.org/data/v1/epss?cve=CVE-2020-18032
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-18032
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://gitlab.com/graphviz/graphviz/-/issues/1700
https://lists.debian.org/debian-lts-announce/2021/05/msg00014.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5PQPHJHPU46FK3R5XBP3XDT4X37HMPC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGY2IGARE6RZHTF2UEZEWLMQCDILFK6A/
https://security.gentoo.org/glsa/202107-04
https://www.debian.org/security/2021/dsa-4914
1966272 https://bugzilla.redhat.com/show_bug.cgi?id=1966272
988000 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988000
cpe:2.3:a:graphviz:graphviz:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:graphviz:graphviz:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
CVE-2020-18032 https://nvd.nist.gov/vuln/detail/CVE-2020-18032
RHSA-2021:4256 https://access.redhat.com/errata/RHSA-2021:4256
USN-5264-1 https://usn.ubuntu.com/5264-1/
USN-5971-1 https://usn.ubuntu.com/5971-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-18032.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:H/I:H/A:H 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:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-18032
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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-18032
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 0.60321
EPSS Score 0.00408
Published At Aug. 11, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:34:45.769622+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.15/main.json 37.0.0