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CVE-2021-40556

Published: 06/10/2022 Updated: 07/10/2022
CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8
VMScore: 0
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Vulnerability Summary

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 malicious user to execute commands remotely. The vulnerability requires authentication.

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asus rt-ax56u_firmware 3.0.0.4.386.44266

References

CWE-787https://www.asus.com/tw/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX56U/HelpDesk_BIOS/https://x1ng.top/2021/10/14/ASUS%E6%A0%88%E6%BA%A2%E5%87%BA%E6%BC%8F%E6%B4%9E%E5%88%86%E6%9E%90/https://nvd.nist.gov
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-27322cross-site request forgeryunauthorizedCVE-2024-33925reflected XSSCVE-2023-51580CVE-2023-51579CVE-2015-2051CVE-2023-51609
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