CVE-2021-46319

9.8 criticalEPSS 6.6%

Critical (9.8) in dlink dir-846 firmware. EPSS 6.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 6.6% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2022-02-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

dlink:dir-846_firmware

References

https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md
https://www.dlink.com/en/security-bulletin/
https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md
https://www.dlink.com/en/security-bulletin/

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