CVE-2021-27078

CVE-2021-27078

Critical · published March 3, 2021

CVSS v3.1
9.1
EPSS
22%
Percentile
97.6
In the wild
Unconfirmed
What it is

🚨 A single vulnerability in Microsoft Exchange Server could let attackers execute remote code with minimal effort! 🔥 Think of this like a delivery person who has access to every room in your house because you left the front door wide open — the access is just too easy! An attacker could waltz in and take control of your server, leading to devastating consequences like data breaches, unauthorized access to sensitive information, and even the potential for full system compromise. This isn't just a tickle; it's like handing over the keys to your entire digital kingdom!

Put simply

Think of this like a delivery person who has access to every room in your house because you left the front door wide open — the access is just too easy! This remote code execution vulnerability arises from improper handling of specific requests, allowing an attacker to execute arbitrary code on the server without needing valid authentication.

What to do

An attacker could waltz in and take control of your server, leading to devastating consequences like data breaches, unauthorized access to sensitive information, and even the potential for full system compromise. This isn't just a tickle; it's like handing over the keys to your entire digital kingdom! Patch your Microsoft Exchange Server immediately to the latest version, ensuring that you have installed all the critical updates. Regularly review your security configurations and consider implementing additional layers of protection to safeguard against future vulnerabilities. You've got this! Stay proactive, and your server will be locked down tighter than Fort Knox! 🛡️

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.21586 · 97.6th percentile
Published
2021-03-03T05:15Z
Affected products (5)
ProductVersionsFixed in
microsoft/exchange_serverall versions—
microsoft/exchange_serverall versions—
microsoft/exchange_serverall versions—
microsoft/exchange_serverall versions—
microsoft/exchange_serverall versions—
References (2)
EPSS history
Timeline
  • 02 MAR 23:55Z
    Microsoft Exchange Server Remote Code Execution Vulnerability
    cvelistv5