{"cve":"CVE-2021-33670","nvd":{"published":"2021-07-14T12:15:08.243","modified":"2026-06-17T03:55:00.050","status":"Modified","description":"SAP NetWeaver AS for Java (Http Service Monitoring Filter), versions - 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, allows an attacker to send multiple HTTP requests with different method types thereby crashing the filter and making the HTTP server unavailable to other legitimate users leading to denial of service vulnerability.","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":[],"references":["http://packetstormsecurity.com/files/166965/SAP-NetWeaver-Java-Denial-Of-Service.html","http://seclists.org/fulldisclosure/2022/May/4","https://launchpad.support.sap.com/#/notes/3056652","https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=580617506","http://packetstormsecurity.com/files/166965/SAP-NetWeaver-Java-Denial-Of-Service.html"],"products":["sap:netweaver_application_server_java"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-33670","score":0.03158,"percentile":0.87978,"date":"2026-10-31"},"kev":null,"osv":[],"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."]}