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Vulnerability details: VCID-vhp1-5zpy-rfdt
Vulnerability ID VCID-vhp1-5zpy-rfdt
Aliases CVE-2021-4214
Summary libpng: hardcoded value leads to heap-overflow
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-4214.json
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.00223 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.00233 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
epss 0.00233 https://api.first.org/data/v1/epss?cve=CVE-2021-4214
cvssv3.1 3.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-4214.json
https://api.first.org/data/v1/epss?cve=CVE-2021-4214
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4214
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/glennrp/libpng/issues/302
2043393 https://bugzilla.redhat.com/show_bug.cgi?id=2043393
CVE-2021-4214 https://access.redhat.com/security/cve/CVE-2021-4214
CVE-2021-4214 https://nvd.nist.gov/vuln/detail/CVE-2021-4214
CVE-2021-4214 https://security-tracker.debian.org/tracker/CVE-2021-4214
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://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-4214.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:L/AC:L/PR:N/UI:R/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
Exploit Prediction Scoring System (EPSS)
Percentile 0.32438
EPSS Score 0.0013
Published At April 21, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T14:18:34.544625+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-4214.json 38.0.0