CVE-2023-35349CWE-20

Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability

Critical · published October 10, 2023

CVSS v3.1
9.8
EPSS
3%
Percentile
86.8
In the wild
Unconfirmed
What it is

🚨 A single exploited message could let attackers execute code on your system! This Microsoft Message Queuing (MSMQ) vulnerability is a game changer you can't ignore! 🔥 Think of MSMQ like a bustling post office where messages are sorted and forwarded. If the post office staff stop checking the content of incoming packages, anyone could slip in a dangerous delivery disguised as a regular letter! 📦 An attacker could exploit this vulnerability to execute arbitrary code on your system, potentially taking full control of your machine. This means they could install malware, steal sensitive data, or disrupt your operations completely! The risks are absolutely devastating, so addressing this NOW is critical!

Put simply

Think of MSMQ like a bustling post office where messages are sorted and forwarded. If the post office staff stop checking the content of incoming packages, anyone could slip in a dangerous delivery disguised as a regular letter! 📦 This remote code execution vulnerability in MSMQ occurs due to improper handling of messages, allowing attackers to send specially crafted messages that execute arbitrary code when processed by the server.

What to do

An attacker could exploit this vulnerability to execute arbitrary code on your system, potentially taking full control of your machine. This means they could install malware, steal sensitive data, or disrupt your operations completely! The risks are absolutely devastating, so addressing this NOW is critical! Immediately patch your MSMQ to the latest version provided by Microsoft. Regularly review your message handling configurations to ensure no unexpected inputs can get through. Train your staff on security best practices to identify suspicious messages! You can tackle this! By following these steps, you'll reinforce your defenses and keep your systems secure. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.02886 · 86.8th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2023-10-10T17:07Z
EPSS history
Timeline
  • 10 OCT 17:07Z
    Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
    cvelistv5