CVE-2021-40556
High
Description
A stack overflow vulnerability exists in the httpd service in ASUS RT-AX56U Router Version 3.0.0.4.386.44266. This vulnerability is caused by the strcat function called by "caupload" input handle function allowing the user to enter 0xFFFF bytes into the stack. This vulnerability allows an attacker to execute commands remotely. The vulnerability requires authentication.
SeverityHigh
CVSS8.8
Exploit probability—
ProductAsus Rt-ax56u Firmware
PublishedOct 6, 2022
First seenOct 6, 2022
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| asus rt-ax56u_firmware | 3.0.0.4.386.44266 | — |
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