High severity · published Feb 16, 2022
CVE-2021-45391
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…
7.5
CVSS
1.8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Ax12 Firmware · Tenda
22.03.01.21_cn · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45391
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45391
Broken Link
http://tendawifi.com/index.html
Exploit
https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/1
Vendor Advisory
https://www.tenda.com.cn/
Product
https://www.tenda.com.cn/product/AX12.html
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