{"cve":"CVE-2021-41500","nvd":{"published":"2021-12-17T21:15:07.777","modified":"2026-06-17T04:08:34.487","status":"Modified","description":"Incomplete string comparison vulnerability exits in cvxopt.org cvxop <= 1.2.6 in APIs (cvxopt.cholmod.diag, cvxopt.cholmod.getfactor, cvxopt.cholmod.solve, cvxopt.cholmod.spsolve), which allows attackers to conduct Denial of Service attacks by construct fake Capsule objects.","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:H","score":7.5},"cwes":["CWE-697"],"references":["https://github.com/cvxopt/cvxopt/issues/193","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CXTPM3DGVYTYQ54OFCMXZVWVOMR7JM2D/","https://github.com/cvxopt/cvxopt/issues/193","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CXTPM3DGVYTYQ54OFCMXZVWVOMR7JM2D/"],"products":["cvxopt_project:cvxopt","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-41500","score":0.01189,"percentile":0.67948,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8rh6-h94m-vj54","url":"https://osv.dev/vulnerability/GHSA-8rh6-h94m-vj54","summary":"Incorrect Comparison in cvxopt","modified":"2024-09-13T20:23:27.697050Z","packages":[{"ecosystem":"PyPI","name":"cvxopt","purl":"pkg:pypi/cvxopt","ranges":["<1.2.7"],"fixed":["1.2.7"]}]},{"id":"PYSEC-2021-870","url":"https://osv.dev/vulnerability/PYSEC-2021-870","summary":"","modified":"2023-11-08T04:06:59.404685Z","packages":[{"ecosystem":"PyPI","name":"cvxopt","purl":"pkg:pypi/cvxopt","ranges":["<1.2.7"],"fixed":["1.2.7"]}]}],"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."]}