{"vulnerability": "CVE-2021-34453", "sightings": [{"uuid": "a6152af3-aa13-4d79-9a96-d3b509977add", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34453", "type": "seen", "source": "https://t.me/cibsecurity/30486", "content": "\u203c CVE-2021-34453 \u203c\n\nMicrosoft Exchange Server Denial of Service Vulnerability\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-10-13T07:32:36.000000Z"}, {"uuid": "0c902d28-e35c-409f-9d28-f775c4c09851", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34453", "type": "seen", "source": "https://t.me/cissp/4600", "content": "Microsoft Exchange Server 2019 and 2016: October 12, 2021 (KB5007012)\nhttps://support.microsoft.com/kb/5007012\n\nMicrosoft Exchange Server 2013: October 12, 2021 (KB5007011)\nhttps://support.microsoft.com/en-us/topic/description-of-the-security-update-for-microsoft-exchange-server-2013-october-12-2021-kb5007011-909b6c6e-9e90-433f-9bee-01e34b413c91\n\n\u0627\u06cc\u0646 \u0628\u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc \u0647\u0627 \u0622\u0633\u06cc\u0628 \u067e\u0630\u06cc\u0631\u06cc \u0627\u0632 \u062f\u0631\u062c\u0647 \u062d\u06cc\u0627\u062a\u06cc \u0628\u0627 \u0634\u0645\u0627\u0631\u0647 \u0647\u0627\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0631\u0641\u0639 \u0645\u06cc \u06a9\u0646\u062f :\nCVE-2021-26427 | Microsoft Exchange Server Remote Code Execution Vulnerability\n\nCVE-2021-34453 | Microsoft Exchange Server Denial of Service Vulnerability\n\nCVE-2021-41348 | Microsoft Exchange Server Elevation of Privilege Vulnerability\n\nCVE-2021-41350 | Microsoft Exchange Server Spoofing Vulnerability\n\n\n\u200e\u200b", "creation_timestamp": "2026-09-01T17:00:38.216995Z"}, {"uuid": "8c40c330-2469-4fa3-abc7-621ae646e56b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34453", "type": "seen", "source": "https://t.me/cissp/4600", "content": "Microsoft Exchange Server 2019 and 2016: October 12, 2021 (KB5007012)\nhttps://support.microsoft.com/kb/5007012\n\nMicrosoft Exchange Server 2013: October 12, 2021 (KB5007011)\nhttps://support.microsoft.com/en-us/topic/description-of-the-security-update-for-microsoft-exchange-server-2013-october-12-2021-kb5007011-909b6c6e-9e90-433f-9bee-01e34b413c91\n\n\u0627\u06cc\u0646 \u0628\u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc \u0647\u0627 \u0622\u0633\u06cc\u0628 \u067e\u0630\u06cc\u0631\u06cc \u0627\u0632 \u062f\u0631\u062c\u0647 \u062d\u06cc\u0627\u062a\u06cc \u0628\u0627 \u0634\u0645\u0627\u0631\u0647 \u0647\u0627\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0631\u0641\u0639 \u0645\u06cc \u06a9\u0646\u062f :\nCVE-2021-26427 | Microsoft Exchange Server Remote Code Execution Vulnerability\n\nCVE-2021-34453 | Microsoft Exchange Server Denial of Service Vulnerability\n\nCVE-2021-41348 | Microsoft Exchange Server Elevation of Privilege Vulnerability\n\nCVE-2021-41350 | Microsoft Exchange Server Spoofing Vulnerability\n\n\n\u200e\u200b", "creation_timestamp": "2026-09-02T01:04:23.132108Z"}, {"uuid": "ab032d0d-577b-45a4-a67f-e17e3a152b90", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34453", "type": "seen", "source": "https://t.me/cissp/4600", "content": "Microsoft Exchange Server 2019 and 2016: October 12, 2021 (KB5007012)\nhttps://support.microsoft.com/kb/5007012\n\nMicrosoft Exchange Server 2013: October 12, 2021 (KB5007011)\nhttps://support.microsoft.com/en-us/topic/description-of-the-security-update-for-microsoft-exchange-server-2013-october-12-2021-kb5007011-909b6c6e-9e90-433f-9bee-01e34b413c91\n\n\u0627\u06cc\u0646 \u0628\u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc \u0647\u0627 \u0622\u0633\u06cc\u0628 \u067e\u0630\u06cc\u0631\u06cc \u0627\u0632 \u062f\u0631\u062c\u0647 \u062d\u06cc\u0627\u062a\u06cc \u0628\u0627 \u0634\u0645\u0627\u0631\u0647 \u0647\u0627\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0631\u0641\u0639 \u0645\u06cc \u06a9\u0646\u062f :\nCVE-2021-26427 | Microsoft Exchange Server Remote Code Execution Vulnerability\n\nCVE-2021-34453 | Microsoft Exchange Server Denial of Service Vulnerability\n\nCVE-2021-41348 | Microsoft Exchange Server Elevation of Privilege Vulnerability\n\nCVE-2021-41350 | Microsoft Exchange Server Spoofing Vulnerability\n\n\n\u200e\u200b", "creation_timestamp": "2026-09-10T17:00:04.519502Z"}]}