What’s Vulnerable › Vulnerabilities

CVE-2021-46319

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-17 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• D-Link DIR-846: 100a43, 100a53dla

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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