CVE-2022-30136

Windows Network File System Remote Code Execution Vulnerability

Critical · published June 15, 2022

Patch now

High probability of exploitation

CVSS calls it critical at 9.8. It sits in the 99.4th percentile for exploit probability.

CVSS v3.1
9.8
EPSS
73%
Percentile
99.4
In the wild
Unconfirmed
What it is

🔥 A single vulnerability in Windows Network File System could let attackers run code remotely, like giving a stranger the keys to your digital office! Think of it like a trusted delivery service that misdelivers packages to the wrong address — an attacker could send malicious code as if it were legitimate mail, without anyone checking the sender! If exploited, an attacker could execute arbitrary code on the server, leading to total control over the system. This means they could read, modify, or even delete critical files, which could be absolutely devastating for your organization!

Put simply

Think of it like a trusted delivery service that misdelivers packages to the wrong address — an attacker could send malicious code as if it were legitimate mail, without anyone checking the sender! This vulnerability allows remote code execution due to improper handling of requests in Windows Network File System. An attacker can exploit this flaw by sending specially crafted packets to the service, bypassing security controls.

What to do

If exploited, an attacker could execute arbitrary code on the server, leading to total control over the system. This means they could read, modify, or even delete critical files, which could be absolutely devastating for your organization! Immediate action is crucial: ensure that Windows is updated to the latest version where the vulnerability is patched. Additionally, monitor network traffic for any suspicious activity, and consider applying strict firewall rules to limit access to the service until patched. Don't delay! You’ve got this! By taking these steps, you'll be reinforcing your defenses and protecting your digital assets! 🛡️

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
0.72558 · 99.4th percentile
Published
2022-06-15T21:51Z
EPSS history
Timeline
  • 15 JUN 21:51Z
    Windows Network File System Remote Code Execution Vulnerability
    cvelistv5