What’s Vulnerable › Vulnerabilities

CVE-2019-6258

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-08-18 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• D-Link Dir-822 Firmware: through 2.02krb06

References

• https://github.com/pr0v3rbs/CVE/tree/master/CVE-2019-6258
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10175
• https://github.com/pr0v3rbs/CVE/tree/master/CVE-2019-6258
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10175

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