All vulnerabilities
CVE-2020-1350

Microsoft Windows DNS Server Remote Code Execution Vulnerability

Microsoft WindowsOperating systems
Open in ThreatlineRecord JSON
CVSS
10.0Critical
ExploitationExploited in the wildAdded to KEV 3 Nov 2021CISA KEV
Exploit odds (EPSS)96.7%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline3 May 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 14 Jul 2020, 22:54 UTCPublishedCVE List
  2. 3 Nov 2021Added to CISA KEVCISA KEV

Description

Microsoft Windows DNS Servers fail to properly handle requests, allowing an attacker to perform remote code execution in the context of the Local System Account. The vulnerability is also known under the moniker of SIGRed.

Text from CVE List

Affected versions 17

  • Windows Serveraffected: 2019CVE List
  • Windows Serveraffected: 2019 (Core installation)CVE List
  • Windows Serveraffected: 2016CVE List
  • Windows Serveraffected: 2016 (Core installation)CVE List
  • Windows Serveraffected: 2008 for 32-bit Systems Service Pack 2CVE List
  • Windows Serveraffected: 2008 for 32-bit Systems Service Pack 2 (Core installation)CVE List
  • Windows Serveraffected: 2008 for x64-based Systems Service Pack 2CVE List
  • Windows Serveraffected: 2008 for x64-based Systems Service Pack 2 (Core installation)CVE List
  • Windows Serveraffected: 2008 R2 for x64-based Systems Service Pack 1CVE List
  • Windows Serveraffected: 2008 R2 for x64-based Systems Service Pack 1 (Core installation)CVE List
  • Windows Serveraffected: 2012CVE List
  • Windows Serveraffected: 2012 (Core installation)CVE List
  • Windows Serveraffected: 2012 R2CVE List
  • Windows Serveraffected: 2012 R2 (Core installation)CVE List
  • Windows Server, version 1909 (Server Core installation)affected: unspecifiedCVE List
  • Windows Server, version 1903 (Server Core installation)affected: unspecifiedCVE List
  • Windows Server, version 2004 (Server Core installation)affected: unspecifiedCVE List

References 2