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Vulnerability details: VCID-a4yb-hm77-7bgc
Vulnerability ID VCID-a4yb-hm77-7bgc
Aliases CVE-2020-21679
Summary Buffer Overflow vulnerability in WritePCXImage function in pcx.c in GraphicsMagick 1.4 allows remote attackers to cause a denial of service via converting of crafted image file to pcx format.
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2020-21679
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2020-21679
ssvc Track https://sourceforge.net/p/graphicsmagick/bugs/619/
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-21679
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21679
619 https://sourceforge.net/p/graphicsmagick/bugs/619/
cpe:2.3:a:graphicsmagick:graphicsmagick:1.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:graphicsmagick:graphicsmagick:1.4:*:*:*:*:*:*:*
CVE-2020-21679 https://nvd.nist.gov/vuln/detail/CVE-2020-21679
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-21679
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: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-07T15:14:19Z/ Found at https://sourceforge.net/p/graphicsmagick/bugs/619/
Exploit Prediction Scoring System (EPSS)
Percentile 0.26181
EPSS Score 0.00088
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:44:55.819114+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2020/21xxx/CVE-2020-21679.json 37.0.0