CVE-2019-10891: D-Link Dir-806 Firmware

Critical severity, CVSS 9.8. EPSS: 19.4% chance of exploitation in the next 30 days.

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.

Affected products

• D-Link Dir-806 Firmware: affected versions not specified

Published 2019-09-06. Last modified 2026-06-17.