CVE-2021-45391 — HIGH (7.5)

Vulnerability Description

A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Tenda	Ax12 Firmware	22.03.01.21_cn
Tenda	Ax12	-

Related Weaknesses (CWE)

CWE-787

References

http://tendawifi.com/index.htmlBroken Link
https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/1ExploitThird Party Advisory
https://www.tenda.com.cn/Vendor Advisory
https://www.tenda.com.cn/product/AX12.htmlProductVendor Advisory
http://tendawifi.com/index.htmlBroken Link
https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/1ExploitThird Party Advisory
https://www.tenda.com.cn/Vendor Advisory
https://www.tenda.com.cn/product/AX12.htmlProductVendor Advisory

FAQ

What is CVE-2021-45391?

CVE-2021-45391 is a vulnerability with a CVSS score of 7.5 (HIGH). A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a...

How severe is CVE-2021-45391?

CVE-2021-45391 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-45391?

Check the references section above for vendor advisories and patch information. Affected products include: Tenda Ax12 Firmware, Tenda Ax12.