Patch Tuesday Drops a Bomb: Critical MSMQ RCE Demands Immediate Attention!
Microsoft’s June Patch Tuesday just landed, and it’s packing a punch with a critical remote code execution vulnerability in Microsoft Message Queuing (MSMQ). This isn’t just another patch; it’s a high-severity threat that could allow unauthenticated attackers to run code on your systems, no user interaction required.[1]
The star of this show, or rather, the villain, is CVE-2024-30080. This nasty bug affects Microsoft Message Queuing (MSMQ), boasting a terrifying CVSS score of 9.8.[2] What does that mean? It means an unauthenticated attacker can execute arbitrary code on a vulnerable server by sending specially crafted malicious MSMQ packets. If your MSMQ service is running and exposed to the internet (typically on TCP port 1801), you’re essentially handing over the keys to your kingdom. This vulnerability has the potential to be “wormable” in certain scenarios, meaning it could spread autonomously across networks.[3]
So What? Why You Should Care, Like, Yesterday.
If you’re a developer or security pro running Windows servers, particularly those with MSMQ enabled, this is your five-alarm fire drill. This isn’t some minor denial-of-service; we’re talking full system compromise. An attacker could take over your server, deploy ransomware, steal data, or use it as a pivot point into your entire infrastructure. You need to identify all systems running the MSMQ service and prioritize patching them immediately. Go check for TCP port 1801 exposure and, if possible, limit network access to MSMQ to only trusted sources.
Don’t sleep on this one. June Patch Tuesday is a critical wake-up call for anyone running Windows servers. Patch, verify, and secure your systems – yesterday. Your future self (and your boss) will thank you.

