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THREATWIRE

CVE Tracker

CVE-2020-1350

Microsoft Windows DNS Server Remote Code Execution Vulnerability

IN CISA KEV

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.

Vendor
Microsoft
Product
Windows
CVSS
No score recorded (no NVD record loaded for this entry)
CWE
Not recorded
Published
Not recorded
NVD modified
Not recorded

CISA KEV

Date added
2021-11-03
Due date
2022-05-03
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.

EPSS

96.7% chance of exploitation in the next 30 days (percentile 99th)

FIRST EPSS, updated 17 Oct 2026. About EPSS

CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.

Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.