The Tenda G0 router firmware version 15.11.0.5 has multiple buffer overflow vulnerabilities in the Saveqqlist function, specifically through the qqStr and markStr parameters. Exploitation requires no privileges or user interaction and can be triggered remotely over the network via crafted HTTP requests. Successful exploitation results in a denial of service condition, impacting device availability. There is no evidence of known exploits in the wild, and no official fix or patch has been disclosed as of the publication date.

An attacker can remotely cause a denial of service on affected Tenda G0 devices running version 15.11.0.5 by exploiting buffer overflow vulnerabilities in the Saveqqlist function. This results in service disruption without affecting confidentiality or integrity of data.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider limiting network exposure of affected devices to untrusted networks to reduce the risk of exploitation.