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Vulnerability record · CVE-2019-10891 · published 6 September 2019

CVE-2019-10891: Dlink dir-806 firmware os command injection vulnerability

Dlink · Dir 806 Firmware

An issue was discovered in D-Link DIR-806 devices. There is a command injection in function hnap_main, which calls system() without checking the parameter that can be controlled by user, and finally allows remote attackers to execute arbitrary shell commands with a special HTTP header.

9.8 CVSS 3.1 Critical EPSS 19% · top 2.7% CWE-78 · OS command injection
9.8CVSS 3.1 base score, v2 10.0
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in D-Link DIR-806 devices. There is a command injection in function hnap_main, which calls system() without checking the parameter that can be controlled by user, and finally allows remote attackers to execute arbitrary shell commands with a special HTTP header.

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/Kirin-say/Vulnerabilities/blob/master/DIR-806_Code_Injection.md ExploitThird Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10282
https://github.com/Kirin-say/Vulnerabilities/blob/master/DIR-806_Code_Injection.md ExploitThird Party 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-2019-10891), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.