CVE-2020-1350: Microsoft Windows DNS Server Remote Code Execution Vulnerability

CVE-2020-1350 · Severity: critical · CVSS 10 · Exploited in the wild · Published 2021-11-03

A remote code execution vulnerability, known as SIGRed, exists in Microsoft Windows DNS Servers due to improper handling of requests. An unauthenticated attacker can exploit this to execute code with Local System Account privileges.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2020-1350 exploited in the wild?
Yes. CVE-2020-1350 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2020-1350?
Critical severity, with a CVSS score of 10, published 3 November 2021.
Which products and versions are affected?
Microsoft Windows Server 2008 SP2, R2 SP1; Microsoft Windows Server 2012 R2; Microsoft Windows Server 2016 1903, 1909, 2004; Microsoft Windows Server 2019.
Is there a fix for CVE-2020-1350?
A patch was published on 2020-07-14: MSRC advisory and patch released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2020-1350 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2020-1350?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows Server 2008 SP2, R2 SP1
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016 1903, 1909, 2004
  • Microsoft Windows Server 2019

Timeline

  • 2020-07-14: disclosed: NVD Published Date
  • 2020-07-14: patched: MSRC advisory and patch released
  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: exploited: Reported as exploited in the wild in advisory metadata

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