Is CVE-2020-1350 actively exploited?

Yes. CVE-2020-1350 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2020-1350 be exploited remotely?

The attack vector of CVE-2020-1350 has not been classified yet.

What is the CVSS score of CVE-2020-1350?

CVE-2020-1350 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2020-1350

HIGHCISA KEVIN THE WILD

CVE-2020-1350

Published: November 3, 2021

EPSS:93.81%probability of exploitation in 30 daysPercentile:99.9th

Official 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.

NVD Source

CISA KEV Advisory

Microsoft Windows DNS Server Remote Code Execution Vulnerability

Added to KEV: 2021-11-03Federal patch deadline: 2022-05-03

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability, known as SIGRed, affects Microsoft Windows DNS Servers and allows an attacker to achieve remote code execution in the context of the Local System Account. The high EPSS score of 0.93808 indicates a significant likelihood of exploitation, and its presence in the KEV catalog confirms active exploitation, making this a critical vulnerability.

This vulnerability is actively being exploited in the wild. Attackers can achieve remote code execution on affected DNS servers.

Recommended Action

Organizations should apply the latest security updates and patches for Microsoft Windows DNS Servers. Ensure DNS servers are properly configured and exposed only to necessary networks.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2020-1350 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2020-1350 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.