CRITICAL

CVE-2021-46319

CVSS v3

9.8

CRITICAL

EPSS Score

16.6%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

Remote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicious users can use this vulnerability to use "\\ " or backticks to bypass the shell metacharacters in the ssid0 or ssid1 parameters to execute arbitrary commands.This vulnerability is due to the fact that CVE-2019-17509 is not fully patched and can be bypassed by using line breaks or backticks on its basis.

Technical details

Published
2/17/2022

Frequently asked questions

What is CVE-2021-46319?

Remote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicious users can use this vulnerability to use "\\ " or backticks to bypass the shell metacharacters in the ssid0 or ssid1 parameters to execute arbitrary commands.This vulnerability is due to the fact that CVE-2019-17509 is not fully patched and can be bypassed by using line breaks or backticks on its basis.

Is CVE-2021-46319 actively exploited?

Active exploitation of CVE-2021-46319 has not been confirmed. The EPSS score is 16.6%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-46319?

CVE-2021-46319 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-46319 affecting your environment?

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