There is 1 open security issue in buster.
1 issue left for the package maintainer to handle:
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
You can find information about how to handle this issue in the security team's documentation.