{"cve":"CVE-2021-34141","nvd":{"published":"2021-12-17T19:15:07.543","modified":"2026-10-08T21:17:35.733","status":"Modified","description":"An incomplete string comparison in the numpy.core component in NumPy before 1.22.0 allows attackers to trigger slightly incorrect copying by constructing specific string objects. NOTE: the vendor states that this reported code behavior is \"completely harmless.\"","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-697"],"references":["https://github.com/numpy/numpy/issues/18993","https://www.oracle.com/security-alerts/cpujul2022.html","https://github.com/numpy/numpy/issues/18993","https://www.oracle.com/security-alerts/cpujul2022.html"],"products":["numpy:numpy","oracle:communications_cloud_native_core_policy"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-34141","score":0.01679,"percentile":0.76742,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-fpfv-jqm9-f5jm","url":"https://osv.dev/vulnerability/GHSA-fpfv-jqm9-f5jm","summary":"Incorrect Comparison in NumPy","modified":"2023-11-08T04:06:07.388275Z","packages":[{"ecosystem":"PyPI","name":"numpy","purl":"pkg:pypi/numpy","ranges":["<1.22"],"fixed":["1.22"]}]},{"id":"PYSEC-2021-855","url":"https://osv.dev/vulnerability/PYSEC-2021-855","summary":"","modified":"2023-11-08T04:06:07.388275Z","packages":[{"ecosystem":"PyPI","name":"numpy","purl":"pkg:pypi/numpy","ranges":[">=1.9.0 <1.10.0"],"fixed":["1.10.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}