CVE-2019-6258

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/pr0v3rbs/CVE/tree/master/CVE-2019-6258Exploit, Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10175Patch, Vendor Advisory
https://github.com/pr0v3rbs/CVE/tree/master/CVE-2019-6258Exploit, Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10175Patch, Vendor Advisory

Timeline

Published: Aug 18, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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