A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HMicrosoft Windows Server 2008
OSMicrosoftr2Microsoft Windows Server 2012
OSMicrosoftr2Microsoft Windows Server 2016
OSMicrosoftall versionsMicrosoft Windows Server 2019
OSMicrosoftall versions
CISA KEV — detailsi
- Vendori
- Microsoft ↗
- Producti
- Windows
- Added to KEVi
- November 3, 2021
- Remediation deadline (US Federal)i
- May 3, 2022(overdue)
Apply updates per vendor instructions.
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.
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