How severe is CVE-2020-1350?

CVE-2020-1350 has a CVSS 3.1 base score of 10 (CRITICAL). EPSS estimates a 96.7% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2020-1350: Microsoft Windows DNS Server Remote Code Execution

CISA Known Exploited Vulnerabilities

Microsoft Windows DNS Server Remote Code Execution Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2021-11-03

Remediation due

2022-05-03

Required action
Apply updates per vendor instructions.

CISA notes
Reference CISA's ED 20-03 (https://www.cisa.gov/news-events/directives/ed-20-03-mitigate-windows-dns-server-remote-code-execution-vulnerability-july-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-03. https://nvd.nist.gov/vuln/detail/CVE-2020-1350

Description

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'.

Severity

CVSS 3.1 · CISA10 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Microsoft	Windows Server	2019 2019 (Core installation) 2016 2016 (Core installation) 2008 for 32-bit Systems Service Pack 2 2008 for 32-bit Systems Service Pack 2 (Core installation) 2008 for x64-based Systems Service Pack 2 2008 for x64-based Systems Service Pack 2 (Core installation) 2008 R2 for x64-based Systems Service Pack 1 2008 R2 for x64-based Systems Service Pack 1 (Core installation) 2012 2012 (Core installation) 2012 R2 2012 R2 (Core installation)
Microsoft	Windows Server, version 1909 (Server Core installation)	unspecified
Microsoft	Windows Server, version 1903 (Server Core installation)	unspecified
Microsoft	Windows Server, version 2004 (Server Core installation)	unspecified

References

2 Links

Other references

Record Details

Published

2020-07-14

Last updated

2025-10-21

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.