{"uuid": "215d159e-ef90-4dd7-a7ec-0a30ba4f93bd", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-26858", "type": "seen", "source": "https://t.me/cissp/2548", "content": "Blue Team Techniques\nMicrosoft Exchange On-Premises Mitigation Tool (partial mitigations CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, CVE-2021-27065)\nhttps://msrc-blog.microsoft.com/2021/03/15/one-click-microsoft-exchange-on-premises-mitigation-tool-march-2021\n+ Security scripts:\nhttps://github.com/microsoft/CSS-Exchange/tree/main/Security", "creation_timestamp": "2026-09-01T17:00:58.468426Z"}