CVE-2021-46319
CRITICALD-Link DIR-846 Firmware - Remote Code Execution via SSID Parameter Command Injection
Title source: llmDescription
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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.dlink.com/en/security-bulletin/
Exploit, Third Party Advisory x_refsource_misc
https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md
Scores
CVSS v3
9.8
EPSS
0.2096
EPSS Percentile
95.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-78
Status
published
Products (2)
dlink/dir-846_firmware
100a43
dlink/dir-846_firmware
100a53dla
Published
Feb 17, 2022
Tracked Since
Feb 18, 2026