⚡ Exploit-DB.ai CRITICAL
CRITICAL

CVE-2023-21554

Published: March 18, 2026 · Source: National Vulnerability Database (NVD)

⚡ AI Threat Assessment

QueueJumper: Unauthenticated RCE via MSMQ on port 1801. Apply April 2023 patches immediately. Disable MSMQ service if not in use (not installed by default but enabled inadvertently in some enterprise configurations).

📋 Official Description

Windows Message Queuing Remote Code Execution Vulnerability allows unauthenticated RCE via TCP port 1801. QueueJumper vulnerability.

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