{"id":"CVE-2019-12223","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-12223","generatedAt":"2026-10-28T22:44:30.945Z","title":"A system crash and reboot can be achieved by submitting a long username in excess of 117 characters.","description":"An issue was discovered in NVR WebViewer on Hanwah Techwin SRN-472s 1.07_190502 devices, and other SRN-x devices before 2019-05-03. A system crash and reboot can be achieved by submitting a long username in excess of 117 characters. The username triggers a buffer overflow in the main process controlling operation of the DVR system, rendering services unavailable during the reboot operation. A repeated attack affects availability as long as the attacker has network access to the device.","published":"2019-09-05T15:15:12.000Z","lastModified":"2026-06-17T02:14:17.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-119"],"affected":["hanwha-security/srn-472s firmware","hanwha-security/srn-873s firmware","hanwha-security/srn-1673s firmware"],"epss":{"score":0.02369,"percentile":0.83733,"date":"2026-10-27","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 (2.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://gist.github.com/dustinnoe/66f91573a0080c9fb2c21819d8805a82","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://medium.com/%40noe.dustin/samsung-webviewer-remote-dos-vulberability-cve-2019-12223-5f4afbc83fbd","source":"cve@mitre.org"},{"url":"https://www.hanwha-security.com/en/products/video-recorder/nvr/ch4/SRN-472S/overview/","tags":["Product"],"source":"cve@mitre.org"},{"url":"https://gist.github.com/dustinnoe/66f91573a0080c9fb2c21819d8805a82","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://medium.com/%40noe.dustin/samsung-webviewer-remote-dos-vulberability-cve-2019-12223-5f4afbc83fbd","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.hanwha-security.com/en/products/video-recorder/nvr/ch4/SRN-472S/overview/","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-12223","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."}