CVE-2021-46319

high-risk
Published 2022-02-17

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.

Do I need to act?

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21.0% chance of exploitation in next 30 days
EPSS score — higher than 79% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Dlink

References (4)

Exploit https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Comman...
Vendor Advisory https://www.dlink.com/en/security-bulletin/
Exploit https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Comman...
Vendor Advisory https://www.dlink.com/en/security-bulletin/
53
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 14/34 · Moderate
Exposure 7/34 · Low