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Security Advisories 2021

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Document Number Title Revision Publish Date Reviewed Date
SA-21-13 Situational Awareness-Apache LOG4J Vulnerability -- 12/23/2021 --
SA-21-12 National Special Security Event for the 76th United Nations General Assembly in the New York, NY area -- 08/31/2021 --
SA-21-11 National Special Security Event for the 76th United Nations General Assembly in the New York, NY area -- 08/31/2021 --
SA-21-10 Situational Awareness – Blackberry QNX Vulnerability -- 08/17/2021 --
SA-21-09 National Special Security Event for the Presidential Address to a Joint Session of Congress -- 04/20/2021 --
SA-21-08 National Special Security Event for the Presidential Address to a Joint Session of Congress -- 04/20/2021 --
SA-21-07 National Special Security Event for the Presidential Address to a Joint Session of Congress -- 04/20/2021 --
SA-21-06 Updated Voluntary Reporting Guidelines For Suspicious Flyover Activity—Unmanned Aircraft Systems -- 03/19/2021 --
SA-21-05 Situational Awareness—Microsoft Exchange Server Vulnerabilities -- 03/10/2021 --
SA-21-04 Situational Awareness-National Terrorism Advisory System Bulletin -- 01/29/2021 --
SA-21-03 National Special Security Event for the 2021 Presidential Inauguration in the Washington, DC area -- 01/12/2021 --
SA-21-02 National Special Security Event for the 2021 Presidential Inauguration in the Washington, DC area -- 01/12/2021 --
SA-21-01 National Special Security Event for the 2021 Presidential Inauguration in the Washington, DC area -- 01/12/2021 --

Page Last Reviewed/Updated Thursday, August 27, 2026

Page Last Reviewed/Updated Thursday, August 27, 2026