{"id":"CVE-2019-6258","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-6258","generatedAt":"2026-10-28T00:31:55.214Z","title":"D-Link DIR-822 Rev.Bx devices with firmware v.202KRb06 and older allow a buffer overflow via long MacAddress data in a /HNAP1/SetClientInfo HNAP protocol message, which is mishandled in /usr/sbin/udhcpd during reading of the /var/servd/LAN-1-udhcpd.conf…","description":"D-Link DIR-822 Rev.Bx devices with firmware v.202KRb06 and older allow a buffer overflow via long MacAddress data in a /HNAP1/SetClientInfo HNAP protocol message, which is mishandled in /usr/sbin/udhcpd during reading of the /var/servd/LAN-1-udhcpd.conf file.","published":"2020-08-18T17:15:11.000Z","lastModified":"2026-06-17T02:38:54.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-120"],"affected":["d-link/dir-822 firmware"],"epss":{"score":0.02617,"percentile":0.85336,"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 (2.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/pr0v3rbs/CVE/tree/master/CVE-2019-6258","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10175","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/pr0v3rbs/CVE/tree/master/CVE-2019-6258","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10175","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-6258","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."}