D-Link DIR-3040 1.13B03 is susceptible to information disclosure in the Syslog functionality. A specially crafted HTTP network request can lead to the disclosure of sensitive information. An attacker can obtain access to user accounts and access sensitive information, modify data, and/or execute unauthorized operations.
View the template here CVE-2021-21816.yaml
References:
https://nvd.nist.gov/vuln/detail/CVE-2021-21816