CVE-2023-31893

Name of the Vulnerable Software and Affected Versions Telefnica Brasil Vivo Play (IPTV) Firmware version 2023.04.04.01.06.15

Description The issue is related to a Denial of Service (DoS) via DNS Recursion. This means that the system can be made unavailable by exploiting its handling of DNS recursion, which is a process where a DNS server acts as a proxy for another DNS server to resolve a query.

Recommendations For Telefnica Brasil Vivo Play (IPTV) Firmware version 2023.04.04.01.06.15, as a temporary workaround, consider restricting DNS recursion to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.