November 3, 2021 · Applied Cybernetics Group
CVE-2020-1350 — Microsoft Windows
Microsoft Windows DNS Server Remote Code Execution Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 99.9th percentile (score 0.938, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2020-1350
CISA short 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.
Required action
Apply updates per vendor instructions.