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Vulnerability details: VCID-qzwu-as7k-57gy
Vulnerability ID VCID-qzwu-as7k-57gy
Aliases CVE-2021-33430
GHSA-6p56-wp2h-9hxr
PYSEC-2021-854
Summary
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33430.json
epss 0.00173 https://api.first.org/data/v1/epss?cve=CVE-2021-33430
epss 0.00173 https://api.first.org/data/v1/epss?cve=CVE-2021-33430
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-6p56-wp2h-9hxr
cvssv3.1 5.3 https://github.com/numpy/numpy
cvssv4 6.0 https://github.com/numpy/numpy
generic_textual MODERATE https://github.com/numpy/numpy
cvssv3.1 5.3 https://github.com/numpy/numpy/commit/ae317fd9ff3e79c0eac357d723bfc29cbd625f2e
cvssv4 6.0 https://github.com/numpy/numpy/commit/ae317fd9ff3e79c0eac357d723bfc29cbd625f2e
generic_textual MODERATE https://github.com/numpy/numpy/commit/ae317fd9ff3e79c0eac357d723bfc29cbd625f2e
cvssv3.1 5.3 https://github.com/numpy/numpy/issues/18939
cvssv4 6.0 https://github.com/numpy/numpy/issues/18939
generic_textual MODERATE https://github.com/numpy/numpy/issues/18939
ssvc Track https://github.com/numpy/numpy/issues/18939
cvssv3.1 5.3 https://github.com/pypa/advisory-database/tree/main/vulns/numpy/PYSEC-2021-854.yaml
cvssv4 6.0 https://github.com/pypa/advisory-database/tree/main/vulns/numpy/PYSEC-2021-854.yaml
generic_textual MODERATE https://github.com/pypa/advisory-database/tree/main/vulns/numpy/PYSEC-2021-854.yaml
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2021-33430
cvssv4 6.0 https://nvd.nist.gov/vuln/detail/CVE-2021-33430
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2021-33430
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33430.json
https://api.first.org/data/v1/epss?cve=CVE-2021-33430
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33430
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/numpy/numpy
https://github.com/numpy/numpy/commit/ae317fd9ff3e79c0eac357d723bfc29cbd625f2e
https://github.com/pypa/advisory-database/tree/main/vulns/numpy/PYSEC-2021-854.yaml
18939 https://github.com/numpy/numpy/issues/18939
2035034 https://bugzilla.redhat.com/show_bug.cgi?id=2035034
CVE-2021-33430 https://nvd.nist.gov/vuln/detail/CVE-2021-33430
GHSA-6p56-wp2h-9hxr https://github.com/advisories/GHSA-6p56-wp2h-9hxr
RHSA-2022:0987 https://access.redhat.com/errata/RHSA-2022:0987
RHSA-2022:1000 https://access.redhat.com/errata/RHSA-2022:1000
USN-5763-1 https://usn.ubuntu.com/5763-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33430.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)

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Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/numpy/numpy
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/numpy/numpy
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/numpy/numpy/commit/ae317fd9ff3e79c0eac357d723bfc29cbd625f2e
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

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Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/numpy/numpy/commit/ae317fd9ff3e79c0eac357d723bfc29cbd625f2e
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/numpy/numpy/issues/18939
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

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Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/numpy/numpy/issues/18939
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-05-01T14:32:49Z/ Found at https://github.com/numpy/numpy/issues/18939
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/numpy/PYSEC-2021-854.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

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Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/numpy/PYSEC-2021-854.yaml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-33430
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

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none

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unchanged

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Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-33430
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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adjacent

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Exploit Prediction Scoring System (EPSS)
Percentile 0.38542
EPSS Score 0.00173
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-10T18:08:06.238177+00:00 SUSE Severity Score Importer Import https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml 38.6.0