CVE-2022-22047KEV · OVERDUE

Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability

High · published July 12, 2022

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.8. It is confirmed in active exploitation. It sits in the 97.3th percentile for exploit probability.

1544
days past CISA
deadline
CVSS v3.1
7.8
EPSS
19%
Percentile
97.3
In the wild
Confirmed
What it is

🚨 A crafty attacker can leverage a vulnerability in Windows' CSRSS to elevate privileges with a single malicious request! ⚡ Think of CSRSS as a highly skilled concierge in a fancy hotel. If someone tricks the concierge into thinking they're a VIP, they gain access to all the exclusive areas without a valid keycard. This vulnerability is absolutely devastating! An attacker could gain elevated privileges, allowing them to execute commands or install malicious software with the same rights as an admin. Imagine the chaos if a malicious actor could take over critical system functions undetected!

Put simply

Think of CSRSS as a highly skilled concierge in a fancy hotel. If someone tricks the concierge into thinking they're a VIP, they gain access to all the exclusive areas without a valid keycard. The CVE-2022-22047 vulnerability exists in the Windows Client Server Run-time Subsystem, allowing an attacker to exploit it through a specially crafted application that can lead to elevation of privilege.

What to do

This vulnerability is absolutely devastating! An attacker could gain elevated privileges, allowing them to execute commands or install malicious software with the same rights as an admin. Imagine the chaos if a malicious actor could take over critical system functions undetected! To protect yourself, ensure that you install the latest Windows updates and patches from Microsoft immediately. Regularly check for updates and implement strict access controls to limit the risk of exploitation. You've got this! Stay vigilant, patch those systems, and you'll keep your environment secure! 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.18765 · 97.3th percentile
Published
2022-07-12T22:37Z
KEV added
2022-07-12 · due 2022-08-02
EPSS history
Timeline
  • 12 JUL 22:37Z
    Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability
    cvelistv5
  • 12 JUL 00:00Z
    Added to CISA KEV — remediate by Aug 2
    kev