{"id":"CVE-2021-22292","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-22292","generatedAt":"2026-10-27T22:28:42.624Z","title":"There is a denial of service (DoS) vulnerability in eCNS280 versions V100R005C00, V100R005C10.","description":"There is a denial of service (DoS) vulnerability in eCNS280 versions V100R005C00, V100R005C10. Due to a design defect, remote unauthorized attackers send a large number of specific messages to affected devices, causing system resource exhaustion and web application DoS.","published":"2021-02-06T03:15:13.000Z","lastModified":"2026-06-17T03:36:57.000Z","status":"Modified","sourceIdentifier":"psirt@huawei.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["huawei/ecns280 firmware"],"epss":{"score":0.00904,"percentile":0.59539,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210113-02-dos-en","tags":["Vendor Advisory"],"source":"psirt@huawei.com"},{"url":"https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210113-02-dos-en","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-22292","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}