CVE-2020-1350KEV · OVERDUE

Microsoft Windows DNS Server Remote Code Execution Vulnerability

Critical · published July 14, 2020

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 10.0. It is confirmed in active exploitation. It sits in the 99.9th percentile for exploit probability.

1634
days past CISA
deadline
CVSS v3.1
10.0
EPSS
97%
Percentile
99.9
In the wild
Confirmed
What it is

🚨 An unauthenticated request can unlock a treasure trove of remote code execution on Windows DNS servers! 🔥 Think of your DNS server as a high-security vault. If a thief finds a way to slip a forged request past the guards, they can walk right in and access everything — and that’s exactly what this vulnerability allows! 🏴‍☠️ With this vulnerability, an attacker could execute arbitrary code on the DNS server, potentially taking control of the entire network. This means they could steal sensitive data, modify crucial records, or even launch further attacks against connected systems — an absolute nightmare for any organization! 😱

Put simply

Think of your DNS server as a high-security vault. If a thief finds a way to slip a forged request past the guards, they can walk right in and access everything — and that’s exactly what this vulnerability allows! 🏴‍☠️ CVE-2020-1350 is a remote code execution vulnerability in Windows DNS servers that arises from improper handling of requests, allowing an attacker to craft specially designed requests to execute code remotely without authentication.

What to do

With this vulnerability, an attacker could execute arbitrary code on the DNS server, potentially taking control of the entire network. This means they could steal sensitive data, modify crucial records, or even launch further attacks against connected systems — an absolute nightmare for any organization! 😱 Patch your Windows DNS servers immediately to the latest version to close this vulnerability. Regularly audit your network traffic for suspicious requests and implement strict access controls to minimize exposure. 🛡️ You've got this! Stay vigilant and proactive, and you'll keep your network secure. 🌟

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.96721 · 99.9th percentile
Published
2020-07-14T22:54Z
KEV added
2021-11-03 · due 2022-05-03
EPSS history
Timeline
  • 03 NOV 00:00Z
    Added to CISA KEV — remediate by May 3
    kev
  • 14 JUL 22:54Z
    A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote…
    cvelistv5