critical9.8
CVE-2021-27707
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/"portMappi…
Impact
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/"portMappingIndex "request. This occurs because the "formDelPortMapping" function directly passes the parameter "portMappingIndex" to strcpy without limit.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Tenda | G1 Firmware | Version v15.11.0.17\(9502\)_cn |
| Tenda | G3 Firmware | Version v15.11.0.17\(9502\)_cn |