CVE-2021-26810

9.8 criticalEPSS 4.9%

Critical (9.8) in dlink dir-816 firmware. EPSS 4.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 4.9% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2021-03-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

dlink:dir-816_firmware

References

https://github.com/GD008/vuln/blob/main/DIR-816.md
https://www.dlink.com/en/security-bulletin/
https://github.com/GD008/vuln/blob/main/DIR-816.md
https://www.dlink.com/en/security-bulletin/

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