{"id":"CVE-2020-28400","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-28400","generatedAt":"2026-10-28T01:52:32.411Z","title":"Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial of service condition.","description":"Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial of service condition. The vulnerability can be triggered if a large amount of DCP reset packets are sent to the device.","published":"2021-07-13T11:15:09.000Z","lastModified":"2026-06-17T03:10:23.000Z","status":"Modified","sourceIdentifier":"productcert@siemens.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-770"],"affected":["siemens/dk standard ethernet controller evaluation kit firmware","siemens/ek-ertec 200 evaulation kit firmware","siemens/ek-ertec 200p evaluation kit firmware","siemens/ruggedcom rm1224 firmware","siemens/scalance m-800 firmware","siemens/scalance s615 firmware","siemens/scalance w700 firmware","siemens/scalance w1700 firmware","siemens/scalance x200-4 p irt firmware","siemens/scalance x201-3p irt firmware","siemens/scalance x201-3p irt pro firmware","siemens/scalance x202-2 irt firmware","siemens/scalance x202-2p irt pro firmware","siemens/scalance x204 irt firmware","siemens/scalance x204 irt pro firmware","siemens/scalance x204-2 firmware","siemens/scalance x204-2fm firmware","siemens/scalance x204-2ld firmware","siemens/scalance x204-2ld ts firmware","siemens/scalance x204-2ts firmware","siemens/scalance x206-1 firmware","siemens/scalance x206-1ld firmware","siemens/scalance x208 firmware","siemens/scalance x208pro firmware","siemens/scalance x212-2 firmware","siemens/scalance x212-2ld firmware","siemens/scalance x216 firmware","siemens/scalance x224 firmware","siemens/scalance x302-7eec firmware","siemens/scalance x304-2fe firmware","siemens/scalance x306-1ldfe firmware","siemens/scalance x307-2eec firmware","siemens/scalance x307-3 firmware","siemens/scalance x307-3ld firmware","siemens/scalance x308-2 firmware","siemens/scalance x308-2ld firmware","siemens/scalance x308-2lh firmware","siemens/scalance x308-2lh\\+ firmware","siemens/scalance x308-2m firmware","siemens/scalance x308-2m poe firmware","siemens/scalance x308-2m ts firmware","siemens/scalance x310 firmware","siemens/scalance x310fe firmware","siemens/scalance x320-1fe firmware","siemens/scalance x320-3ldfe firmware","siemens/scalance xb-200 firmware","siemens/scalance xc-200 firmware","siemens/scalance xf201-3p irt firmware","siemens/scalance xf202-2p irt firmware","siemens/scalance xf204 firmware","siemens/scalance xf204 irt firmware","siemens/scalance xf204-2 firmware","siemens/scalance xf204-2ba irt firmware","siemens/scalance xf206-1 firmware","siemens/scalance xf208 firmware","siemens/scalance xf-200ba firmware","siemens/scalance xm400 firmware","siemens/scalance xp-200 firmware","siemens/scalance xr324-4m eec firmware","siemens/scalance xr324-4m poe firmware"],"epss":{"score":0.01856,"percentile":0.79035,"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 (1.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-599968.html","source":"productcert@siemens.com"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-599968.pdf","tags":["Patch","Vendor Advisory"],"source":"productcert@siemens.com"},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-194-03","tags":["Third Party Advisory","US Government Resource"],"source":"productcert@siemens.com"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-599968.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-599968.pdf","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-194-03","tags":["Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-28400","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."}