CVE-2021-27705: Buffer Overflow
Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)CN allows remote attackers to execute arbitrary code via a crafted action/"qosIndex "request. This occurs because the "formQOSRuleDel" function directly passes the parameter "qosIndex" to strcpy without limit.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-27705?
CVE-2021-27705 is considered a critical vulnerability due to its potential to allow remote code execution.
How do I fix CVE-2021-27705?
To fix CVE-2021-27705, you should update the firmware of Tenda G1 and G3 routers to the latest version provided by the manufacturer.
What devices are affected by CVE-2021-27705?
CVE-2021-27705 affects Tenda G1 and G3 routers running firmware v15.11.0.17(9502)_CN.
How does CVE-2021-27705 exploit work?
CVE-2021-27705 exploits a buffer overflow vulnerability in the 'formQOSRuleDel' function that allows attackers to execute arbitrary code.
Can CVE-2021-27705 be exploited remotely?
Yes, CVE-2021-27705 can be exploited remotely via specially crafted HTTP requests.