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Vulnerability record · CVE-2021-46456 · published 4 February 2022

CVE-2021-46456: Dlink dir-823 pro firmware command injection vulnerability

Dlink · Dir 823 Pro Firmware

D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to contain a command injection vulnerability in the function SetWLanACLSettings. This vulnerability allows attackers to execute arbitrary commands via the wl(0).(0)_maclist parameter.

9.8 CVSS 3.1 Critical EPSS 3.7% · top 10.6% CWE-77 · Command injection
9.8CVSS 3.1 base score, v2 7.5
3.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to contain a command injection vulnerability in the function SetWLanACLSettings. This vulnerability allows attackers to execute arbitrary commands via the wl(0).(0)_maclist parameter.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/pjqwudi/my_vuln/blob/main/D-link/vuln_26/26.md Broken Link
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10285 Vendor Advisory
https://www.dlink.com/en/security-bulletin/ Vendor Advisory
https://github.com/pjqwudi/my_vuln/blob/main/D-link/vuln_26/26.md Broken Link
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10285 Vendor Advisory
https://www.dlink.com/en/security-bulletin/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-46456), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.