TI-2019-04452 Aliases CVE-2019-6258 GHSA-2jv7-c5x2-xf95

D-Link DIR-822 Rev.Bx devices with firmware v.202KRb06 and older allow a buffer overflow…

MEDIUM 47CWE-120Published 2020-08-18 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.02617 85th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:d-link:dir-822_firmware::::::::	up to 2.02krb06	Vulnerable	D-Link
cpe:2.3:h:dlink:dir-822:-:::::::*	not specified by NVD	Running on	D-Link Japan K.K.

cpe:2.3:o:d-link:dir-822_firmware:*:*:*:*:*:*:*:* Versions up to 2.02krb06 Vulnerable ·D-Link
cpe:2.3:h:dlink:dir-822:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-6258
2026-10-03 Alias added: GHSA-2jv7-c5x2-xf95

References

Exploit 1

https://github.com/pr0v3rbs/CVE/tree/master/CVE-2019-6258

Patch 1

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10175

TI-2018-14168 In the /HNAP1/SetRouterSettings message, the RemotePort parameter is vulnerable, and the… CVSS 3.0CRITICAL 9.8
TI-2018-14169 D-Link DIR-822 Rev.B 202KRb06, DIR-822 Rev.C 3.10B06, DIR-860L Rev.B 2.03.B03, DIR-868L… CVSS 3.0CRITICAL 9.8
TI-2018-14171 In the /HNAP1/SetQoSSettings message, the uplink parameter is vulnerable, and the… CVSS 3.0CRITICAL 9.8
TI-2018-14172 In the /HNAP1/SetWiFiVerifyAlpha message, the WPSPIN parameter is vulnerable, and the… CVSS 3.0CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences