CVE-2021-46315: D-Link Dir-846 Firmware

Critical severity, CVSS 9.8. EPSS: 6.6% chance of exploitation in the next 30 days.

Remote Command Execution (RCE) vulnerability exists in HNAP1/control/SetWizardConfig.php in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicoius users can use this vulnerability to use "\ " or backticks in the shell metacharacters in the ssid0 or ssid1 parameters to cause arbitrary command execution. Since CVE-2019-17510 vulnerability has not been patched and improved www/hnap1/control/setwizardconfig.php, can also use line breaks and backquotes to bypass.

Affected products

• D-Link Dir-846 Firmware: version 100a43 only; version 100a53dla only

Published 2022-02-17. Last modified 2026-06-17.