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Null Session

nouncandidate·updated May 12, 2026

Known as Anonymous Logon, it is a way of letting an anonymous user retrieve information such as user names and shares over the network or connect without authentication. It is used by applications such as explorer.exe to enumerate shares on remote servers.

MWE

Classifications

Entity Type

Vulnerability0%rule-basedmulti_axis_classifier_low_confidence.v1
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Sensitivity

Regulated65%llm-generatedllm:claude-haiku-4-5
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Information Class

60%llm-generatedllm:claude-haiku-4-5
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Variants

plural
Null Sessions
possessive
Null Session's
pluralpossessive
Null Sessions'