{"cve":"CVE-2021-37253","nvd":{"published":"2021-12-05T21:15:07.753","modified":"2026-06-17T04:00:19.020","status":"Modified","description":"M-Files Web before 20.10.9524.1 allows a denial of service via overlapping ranges (in HTTP requests with crafted Range or Request-Range headers). NOTE: this is disputed because the range behavior is the responsibility of the web server, not the responsibility of the individual web application","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-444"],"references":["http://packetstormsecurity.com/files/165139/M-Files-Web-Denial-Of-Service.html","http://seclists.org/fulldisclosure/2021/Dec/1","https://vulmon.com/vulnerabilitydetails?qid=CVE-2021-37253","https://www.m-files.com/about/trust-center/security-advisories/cve-2021-37253-denial-of-service/","https://www.m-files.com/company/trust-center/vulnerability-disclosure/"],"products":["m-files:m-files_web"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-37253","score":0.02931,"percentile":0.87084,"date":"2026-11-01"},"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."]}