ED 20-03, Mitigate Windows DNS Server Remote Code Execution Vulnerability from July 2020 Patch Tuesday
RetiredCISA · Emergency Directive · July 16, 2020
Summary
Required agencies to patch or apply a registry workaround to all Windows Domain Name System servers by the next day to block a critical remote code execution flaw, and to install the full update on all such servers within one week.
What FedXchange has recorded
No changes recorded. The watch records a new document and any change in its status.
- Issuer
- Cybersecurity and Infrastructure Security Agency (CISA)
- Type
- Emergency Directive
- Number
- ED 20-03
- Issued
- July 16, 2020
- Status
- Retired
Closed by its issuer (CISA's term for a directive that has done its job).
Retired by CISA on January 8, 2026, which found its required actions complete or covered by BOD 22-01.
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