CVE-2021-26810 — CRITICAL (9.8)

Vulnerability Description

D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Dlink	Dir-816 Firmware	1.10b05
Dlink	Dir-816	a2

Related Weaknesses (CWE)

CWE-78

References

https://github.com/GD008/vuln/blob/main/DIR-816.mdExploitThird Party Advisory
https://www.dlink.com/en/security-bulletin/Vendor Advisory
https://github.com/GD008/vuln/blob/main/DIR-816.mdExploitThird Party Advisory
https://www.dlink.com/en/security-bulletin/Vendor Advisory

FAQ

What is CVE-2021-26810?

CVE-2021-26810 is a vulnerability with a CVSS score of 9.8 (CRITICAL). D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi...

How severe is CVE-2021-26810?

CVE-2021-26810 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-26810?

Check the references section above for vendor advisories and patch information. Affected products include: Dlink Dir-816 Firmware, Dlink Dir-816.