# CVE-2020-1350

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'.

- Page: https://www.vulneraibility.com/cve/CVE-2020-1350
- CVSS: 10.0
- Known exploited: yes, in CISA KEV since 2021-11-03; CISA due date 2022-05-03
- EPSS: 96.72% (percentile 99.9)
- Unvetted proof-of-concept code on GitHub: 15 GitHub proofs of concept (first 2020-03-11)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-02-07)
- Weakness: CWE-20
- Published: 2020-07-14

## Affected versions

- Microsoft Windows Server: affected 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)

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350
- [other] http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1350

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.