CVE-2022-41082KEV · OVERDUE

Microsoft Exchange Server Remote Code Execution Vulnerability

High · published October 3, 2022

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.0. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

1465
days past CISA
deadline
CVSS v3.1
8.0
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🚨 A single bad email could lead to a full takeover of your Microsoft Exchange Server! Think of it like a hotel concierge who can access any guest’s room key just because they were handed a fake identification badge. If an attacker exploits this vulnerability, they could walk right into your server and steal whatever they want! This vulnerability could allow an attacker to execute arbitrary code remotely, meaning they could potentially read sensitive emails, manipulate your data, or even install malware. The consequences could be absolutely devastating, putting sensitive company information at risk and jeopardizing your entire organization.

Put simply

Think of it like a hotel concierge who can access any guest’s room key just because they were handed a fake identification badge. If an attacker exploits this vulnerability, they could walk right into your server and steal whatever they want! The CVE-2022-41082 vulnerability allows an authenticated attacker to send a specially crafted request to the Exchange server, leading to remote code execution. This means the attacker could run malicious code on the server with the same privileges as the user.

What to do

This vulnerability could allow an attacker to execute arbitrary code remotely, meaning they could potentially read sensitive emails, manipulate your data, or even install malware. The consequences could be absolutely devastating, putting sensitive company information at risk and jeopardizing your entire organization. Immediately patch your Microsoft Exchange Server to the latest version to mitigate this vulnerability. Ensure that your email filtering solutions are up to date, and monitor for any unusual activity on your server. Don't forget to educate your staff about phishing threats! You've got this! By taking these steps, you'll be well on your way to securing your server and protecting your organization! 🛡️

The record
Technical detail
CVSS v3.1
8.0 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.99970 · 100.0th percentile
Published
2022-10-03T00:00Z
KEV added
2022-09-30 · due 2022-10-21
EPSS history
Timeline
  • 03 OCT 00:00Z
    Microsoft Exchange Server Remote Code Execution Vulnerability
    cvelistv5
  • 30 SEP 00:00Z
    Added to CISA KEV — remediate by Oct 21
    kev