{"id":"CVE-2013-4981","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-4981","generatedAt":"2026-10-27T18:48:27.947Z","title":"Buffer overflow in cgi-bin/user/Config.cgi in AVTECH AVN801 DVR with firmware 1017-1003-1009-1003 and earlier, and possibly other devices, allows remote attackers to cause a denial of service (device crash) and possibly execute arbitrary code via a long…","description":"Buffer overflow in cgi-bin/user/Config.cgi in AVTECH AVN801 DVR with firmware 1017-1003-1009-1003 and earlier, and possibly other devices, allows remote attackers to cause a denial of service (device crash) and possibly execute arbitrary code via a long string in the Network.SMTP.Receivers parameter.","published":"2014-03-03T16:55:04.000Z","lastModified":"2026-06-16T23:58:12.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":9,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:C"},"cwe":["CWE-119"],"affected":["avtech/avn801 dvr firmware","avtech/avn801 dvr"],"epss":{"score":0.05986,"percentile":0.9326,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2013-08-29","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":27942,"kind":"exploit","title":"AVTECH DVR Firmware 1017-1003-1009-1003 - Multiple Vulnerabilities","url":"https://www.exploit-db.com/exploits/27942","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/dos/27942.txt","file":"exploits/hardware/dos/27942.txt","published":"2013-08-29","added":"2013-08-29","updated":"2013-08-29","author":"Core Security","type":"dos","platform":"hardware","port":null,"verified":true,"codes":["CVE-2013-4982","CVE-2013-4981","CVE-2013-4980","OSVDB-96698","OSVDB-96693","OSVDB-96692"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"http://www.coresecurity.com/advisories/avtech-dvr-multiple-vulnerabilities"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 6.0%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://osvdb.org/96693","source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2013/Aug/284","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.coresecurity.com/advisories/avtech-dvr-multiple-vulnerabilities","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://osvdb.org/96693","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2013/Aug/284","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.coresecurity.com/advisories/avtech-dvr-multiple-vulnerabilities","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-4981","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."}