CVE-2021-44632

Name of the Vulnerable Software and Affected Versions TP-LINK WR-886N version 20190826 2.3.8

Description A Buffer Overflow issue exists in the /cloud config/router post/upgrade info feature, allowing malicious users to execute arbitrary code on the system via a crafted post request. This is caused by a stack-based buffer overflow in the upgrade info function of the router's firmware. Exploitation of this issue may allow a remote attacker to execute arbitrary code using a specially formed request.

Recommendations For TP-LINK WR-886N version 20190826 2.3.8, as a temporary workaround, consider disabling the /cloud config/router post/upgrade info feature until a patch is available. Restrict access to this feature to minimize the risk of exploitation. Avoid using the upgrade info feature in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.