CRITICAL

CVE-2021-46315

CVSS v3

9.8

CRITICAL

EPSS Score

26.3%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

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.

Technical details

Published
2/17/2022

Frequently asked questions

What is CVE-2021-46315?

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.

Is CVE-2021-46315 actively exploited?

Active exploitation of CVE-2021-46315 has not been confirmed. The EPSS score is 26.3%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-46315?

CVE-2021-46315 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-46315 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.