{"id":"CVE-2021-22766","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-22766","generatedAt":"2026-10-27T22:33:50.865Z","title":"A CWE-20: Improper Input Validation vulnerability exists in PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions) that could cause denial of service via a specially crafted HTTP packet","description":"A CWE-20: Improper Input Validation vulnerability exists in PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions) that could cause denial of service via a specially crafted HTTP packet","published":"2021-06-11T16:15:11.000Z","lastModified":"2026-06-17T03:37:44.000Z","status":"Modified","sourceIdentifier":"cybersecurity@se.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":["CWE-20"],"affected":["schneider-electric/powerlogic egx100 firmware","schneider-electric/powerlogic egx300 firmware"],"epss":{"score":0.01279,"percentile":0.69803,"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 (1.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03","tags":["Vendor Advisory"],"source":"cybersecurity@se.com"},{"url":"http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-22766","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."}