Dell NetWorker, versions 19.12.0.1 and prior, contains a Selection of Less-Secure Algorithm During Negotiation (Algorithm Downgrade) vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure.
A protocol or its implementation supports interaction between multiple actors and allows those actors to negotiate which algorithm should be used as a protection mechanism such as encryption or authentication, but it does not select the strongest algorithm that is available to both parties.