{"vulnerability": "CVE-2021-21193", "sightings": [{"uuid": "e39cf15a-c3d0-4f60-ad4d-d2fe0401ccee", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "MISP/f5030aca-7d5a-43a4-ae03-8f4ac8e85422", "content": "", "creation_timestamp": "2021-11-08T08:58:18.000000Z"}, {"uuid": "5e944496-f3f9-41d8-a16f-aa8ad67e5f49", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "MISP/3c19819c-1dac-4ef2-bfed-be5efa7e0123", "content": "", "creation_timestamp": "2021-11-20T09:53:52.000000Z"}, {"uuid": "3ed213cc-6e39-47a5-b2b8-58a5f1cdca97", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "seen", "source": 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"CVE-2021-21193", "type": "seen", "source": "https://www.govcert.gov.hk/en/alerts_detail.php?id=562", "content": "", "creation_timestamp": "2026-03-17T14:55:46.726965Z"}, {"uuid": "1d347406-18f5-4402-be81-41c5ffbaef50", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "https://www.govcert.gov.hk/en/alerts_detail.php?id=562", "content": "", "creation_timestamp": "2021-03-15T04:00:00.000000Z"}, {"uuid": "94911cc4-e79f-46a4-b639-631f837bba54", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/31315a90-8e28-4040-93ff-512adeaf1e1e", "content": "", "creation_timestamp": "2026-02-02T12:28:46.649793Z"}, {"uuid": "e49a3fd1-9da0-44f4-90f6-629734960afb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/31315a90-8e28-4040-93ff-512adeaf1e1e", "content": "", "creation_timestamp": "2026-02-02T12:28:46.649793Z"}, {"uuid": "f91e81ac-fc18-4e8a-ad85-e2c97c277aea", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "https://t.me/cKure/4335", "content": "\u25a0\u25a0\u25a0\u25a1\u25a1 Google Chrome update patches CVE-2021-21193 vulnerability | Kaspersky official blog.\n\nhttps://www.kaspersky.com/blog/google-chrome-cve-2021-21193/39013/", "creation_timestamp": "2021-03-15T16:11:43.000000Z"}, {"uuid": "544fe9d0-7868-4611-bcc1-52a340019657", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://t.me/cyberbannews_ir/3407", "content": "\u200d \ud83d\uded1\u0631\u0641\u0639 \u0647\u0641\u062a\u0645\u06cc\u0646 \u0622\u0633\u06cc\u0628\u200c\u067e\u0630\u06cc\u0631\u06cc \u0631\u0648\u0632 \u0635\u0641\u0631 \u062f\u0631 \u0645\u0631\u0648\u0631\u06af\u0631 \u06a9\u0631\u0648\u0645 \n\n\u0634\u0631\u06a9\u062a \u06af\u0648\u06af\u0644 \u0628\u0647\u200c\u062a\u0627\u0632\u06af\u06cc \u0645\u0631\u0648\u0631\u06af\u0631 \u06a9\u0631\u0648\u0645 \u0631\u0627 \u062a\u0627 \u0646\u0633\u062e\u0647 91.0.4472.114 \u0627\u0631\u062a\u0642\u0627\u0621 \u062f\u0627\u062f\u0647 \u0648 4 \u0622\u0633\u06cc\u0628\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0631\u0637\u0631\u0641 \u06a9\u0631\u062f \u06a9\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u0622\u0646\u200c\u0647\u0627 \u0632\u06cc\u0631\u0648\u062f\u06cc \u0628\u0648\u062f\u0647 \u0648 \u0628\u0627 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\u0635\u0641\u0631\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0633\u0627\u0644 2021 \u0627\u0632 \u06a9\u0631\u0648\u0645 \u0628\u0631\u0637\u0631\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a. \u067e\u06cc\u0634\u200c\u062a\u0631 \u0622\u0633\u06cc\u0628\u200c\u067e\u0630\u06cc\u0631\u06cc\u200c\u0647\u0627\u06cc CVE-2021-21148\u060c CVE-2021-21166\u060c CVE-2021-21193\u060c CVE-2021-21220 \u0648 CVE-2021-30551 \u0646\u06cc\u0632 \u0627\u0632 \u0627\u06cc\u0646 \u0645\u0631\u0648\u0631\u06af\u0631 \u0628\u0631\u0637\u0631\u0641 \u0634\u062f\u0647\u200c\u0627\u0646\u062f. \n\n\u0634\u0634\u0645\u06cc\u0646 \u0622\u0633\u06cc\u0628\u200c\u067e\u0630\u06cc\u0631\u06cc \u0631\u0648\u0632 \u0635\u0641\u0631 \u0646\u06cc\u0632 \u0686\u0646\u062f \u0631\u0648\u0632 \u067e\u06cc\u0634 \u0648\u0635\u0644\u0647 \u0634\u062f. \u06af\u0648\u06af\u0644 \u0645\u0631\u0648\u0631\u06af\u0631 \u06a9\u0631\u0648\u0645 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0648\u06cc\u0646\u062f\u0648\u0632\u060c \u0645\u06a9 \u0648 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u062a\u0627 \u0646\u0633\u062e\u0647 91.0.4472.101 \u0628\u0647 \u0631\u0633\u0627\u0646\u06cc \u06a9\u0631\u062f\u0647 \u0648 \u0628\u0627 \u0631\u0641\u0639 14 \u0646\u0642\u0635 \u0627\u0645\u0646\u06cc\u062a\u06cc \u06cc\u06a9 \u0622\u0633\u06cc\u0628\u200c\u067e\u0630\u06cc\u0631\u06cc \u0631\u0648\u0632 \u0635\u0641\u0631 \u0628\u0627 \u0634\u0646\u0627\u0633\u0647 \u00abCVE-2021-30551\u00bb \u0631\u0627 \u0646\u06cc\u0632 \u0628\u0631\u0637\u0631\u0641 \u0646\u0645\u0648\u062f. \n\n#\u06af\u0648\u06af\u0644 \n\n@cyberbannews_ir", "creation_timestamp": "2021-06-19T11:23:57.000000Z"}, {"uuid": "46d1ccee-1e2b-4549-87e4-44e2076f9a8b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "published-proof-of-concept", "source": "https://t.me/infobes/295", "content": "#Analytics\n10 most exploited vulnerabilities of the week (march 8 - 14)\nCVE-2021-26855, CVE-2021-27065 - ProxyLogon MS Exchange Server RCE Vulnerability\nhttps://t.me/cybersecuritytechnologies/2835\nCVE-2021-1732 - Windows kernel 0-day exploit\nhttps://t.me/cybersecuritytechnologies/2679\nCVE-2021-22986, CVE-2021-22987 - F5 BIG-IP TMM uri_normalize_host infoleak and out-of-bounds write\nhttps://t.me/cybersecuritytechnologies/2881\nCVE-2021-21193 - Google Chrome Blink code execution\nhttps://vulmon.com/vulnerabilitydetails?qid=CVE-2021-21193\nCVE-2021-21978 - VMware View Planner\u00a0RCE\nhttps://mobile.twitter.com/osama_hroot/status/1367258907601698816\nhttps://paper.seebug.org/1495\nCVE-2021-21300 - Git vulnerability\nhttps://t.me/cybersecuritytechnologies/2880\nCVE-2021-26411 - IE mshtml use-after-free\nhttps://t.me/cybersecuritytechnologies/2908", "creation_timestamp": "2021-03-15T04:50:46.000000Z"}, {"uuid": "050ba08d-1242-411f-b094-5e79fb909c5d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://t.me/infobes/301", "content": "CVE-2021-26855/27065 - ProxyLogon MS Exchange Server RCE Vulnerability\nhttps://t.me/cybersecuritytechnologies/2835\nCVE-2021-3156 - Heap-Based Buffer Overflow in Sudo\nhttps://t.me/cybersecuritytechnologies/2577\nCVE-2021-22986 - F5 BIG-IP TMM uri_normalize_host infoleak and out-of-bounds write\nhttps://t.me/cybersecuritytechnologies/2881\nCVE-2021-27076 - A Replay-style Deserialization Attack Against SharePoint\nhttps://t.me/cybersecuritytechnologies/2930\nCVE-2021-21193 - Google Chrome Blink code execution\nhttps://vulmon.com/vulnerabilitydetails?qid=CVE-2021-21193\nCVE-2021-22987 - F5 BIG-IP TMM uri_normalize_host infoleak and out-of-bounds write\nhttps://t.me/cybersecuritytechnologies/2881\nCVE-2021-21193:\nGoogle Chrome Blink code execution\nhttps://vulmon.com/vulnerabilitydetails?qid=CVE-2021-21193\nCVE-2021-27076:\nReplay Deserialization Attack Against SharePoint\nhttps://t.me/cybersecuritytechnologies/2930\nCVE-2021-27889, CVE-2021-27890:\nMyBB RCE Chain\nhttps://blog.sonarsource.com/mybb-remote-code-execution-chain", "creation_timestamp": "2021-03-22T10:14:45.000000Z"}, {"uuid": "87692c2a-09b0-4803-b647-9f5b3edd8fa3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "https://t.me/arpsyndicate/1244", "content": "#ExploitObserverAlert\n\nCVE-2021-21193\n\nDESCRIPTION: Exploit Observer has 10 entries related to CVE-2021-21193. Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.\n\nFIRST-EPSS: 0.009190000\nNVD-IS: 5.9\nNVD-ES: 2.8", "creation_timestamp": "2023-12-04T15:59:19.000000Z"}, {"uuid": "c32806c6-cac0-463d-aee5-dbf5d715c9fb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "https://t.me/cibsecurity/24952", "content": "\u203c CVE-2021-21193 \u203c\n\nUse after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-03-16T17:30:05.000000Z"}, {"uuid": "c23fba97-4b52-413f-a2c8-15d62bb4c424", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://t.me/thehackernews/1090", "content": "\ud83d\udd25 WARNING \u2014 A second Google Chrome browser zero-day vulnerability (CVE-2021-21193) has been found actively exploited in-the-wild.\n\nRead details: https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html\nUpdate your browser for Windows, Mac, and Linux systems to 89.0.4389.90 or the latest available version.", "creation_timestamp": "2021-03-13T04:24:31.000000Z"}, {"uuid": "0f0ea4f5-0c6b-46d1-858c-ec94ec9e7057", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/2911", "content": "#Analytics\n10 most exploited vulnerabilities of the week (march 8 - 14)\nCVE-2021-26855, CVE-2021-27065 - ProxyLogon MS Exchange Server RCE Vulnerability\nhttps://t.me/cybersecuritytechnologies/2835\nCVE-2021-1732 - Windows kernel 0-day exploit\nhttps://t.me/cybersecuritytechnologies/2679\nCVE-2021-22986, CVE-2021-22987 - F5 BIG-IP TMM uri_normalize_host infoleak and out-of-bounds write\nhttps://t.me/cybersecuritytechnologies/2881\nCVE-2021-21193 - Google Chrome Blink code execution\nhttps://vulmon.com/vulnerabilitydetails?qid=CVE-2021-21193\nCVE-2021-21978 - VMware View Planner\u00a0RCE\nhttps://mobile.twitter.com/osama_hroot/status/1367258907601698816\nhttps://paper.seebug.org/1495\nCVE-2021-21300 - Git vulnerability\nhttps://t.me/cybersecuritytechnologies/2880\nCVE-2021-26411 - IE mshtml use-after-free\nhttps://t.me/cybersecuritytechnologies/2908", "creation_timestamp": "2021-03-15T11:00:37.000000Z"}, {"uuid": "d7a31723-a15c-4ffb-a6db-81f002bf50a0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/2955", "content": "#Analytics\n10 most exploited vulnerabilities of the week (march 15 - 21)\nCVE-2021-26855/27065 - ProxyLogon MS Exchange Server RCE\nhttps://t.me/cybersecuritytechnologies/2835\nCVE-2021-3156 - Heap-Based Buffer Overflow in Sudo\nhttps://t.me/cybersecuritytechnologies/2577\nCVE-2021-22986/22987 - F5 BIG-IP TMM uri_normalize_host infoleak and out-of-bounds write\nhttps://t.me/cybersecuritytechnologies/2881\nCVE-2021-27076 - A Replay-style Deserialization Attack Against SharePoint\nhttps://t.me/cybersecuritytechnologies/2930\nCVE-2021-21193 - Google Chrome Blink code execution\nhttps://vulmon.com/vulnerabilitydetails?qid=CVE-2021-21193\nCVE-2021-21193:\nGoogle Chrome Blink code execution\nhttps://vulmon.com/vulnerabilitydetails?qid=CVE-2021-21193\nCVE-2021-27076:\nReplay Deserialization Attack Against SharePoint\nhttps://t.me/cybersecuritytechnologies/2930\nCVE-2021-27889, CVE-2021-27890:\nMyBB RCE Chain\nhttps://blog.sonarsource.com/mybb-remote-code-execution-chain", "creation_timestamp": "2021-03-29T05:54:18.000000Z"}, {"uuid": "66afb48a-376a-4bfa-9685-c7ae27781f82", "vulnerability_lookup_origin": "caeb2787-0d58-4236-9039-7c86c3e566f3", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://db.gcve.eu/known-exploited-vulnerabilities-catalog/2b6ec46d-1fc0-4e16-8d3d-485ed6e56917", "content": "", "creation_timestamp": "2026-06-23T11:13:17.298958Z"}, {"uuid": "56a1e2dc-a9ad-4cc1-9e38-22f9d76fa1a7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://t.me/cissp/2505", "content": "", "creation_timestamp": "2026-09-11T17:00:03.575926Z"}, {"uuid": "60999687-1bc7-4635-b752-ff1045bf1159", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://t.me/hacking_Attack/1241", "content": "", "creation_timestamp": "2026-09-08T13:00:03.942357Z"}, {"uuid": "3ab95b90-92cb-4ba8-8b03-bef50f846917", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://t.me/hacking_Attack/25743", "content": "", "creation_timestamp": "2026-09-07T12:00:03.915101Z"}, {"uuid": "db03471d-727e-4a8e-8ec0-a3ec50eeeebb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "https://t.me/hacking_Attack/1241", "content": "", "creation_timestamp": "2026-09-01T20:02:50.534770Z"}, {"uuid": "07b97021-7fa6-4910-83c9-4c4a4ee37a90", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "https://t.me/hacking_Attack/23972", "content": "", "creation_timestamp": "2026-09-01T20:02:23.545192Z"}, {"uuid": "31070724-aa48-4a09-98a4-01143fe5e531", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "https://t.me/hacking_Attack/25743", "content": "", "creation_timestamp": "2026-09-01T20:02:19.578124Z"}, {"uuid": "a8babe11-ec43-410b-8d4f-c64b3863d9be", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "seen", "source": "https://t.me/cissp/2505", "content": "", "creation_timestamp": "2026-09-01T17:01:00.074396Z"}, {"uuid": "7da71751-06bf-45a5-850e-deec9b23d551", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "published-proof-of-concept", "source": "Telegram/uFKuhzjL4w1ghh9qImWl4mkE9uG6FMJvqHn56zexlO-GvjE", "content": "", "creation_timestamp": "2026-08-27T14:00:12.632958Z"}, {"uuid": "7cb37101-3086-4960-9e1c-22c4cc20fbf4", "vulnerability_lookup_origin": "caeb2787-0d58-4236-9039-7c86c3e566f3", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/f692d11a-a658-4e46-82ba-58eab403859f", "content": "", "creation_timestamp": "2026-06-19T12:47:47.287896Z"}, {"uuid": "0c0699f9-4251-4260-9c99-3d0be79ee7c8", "vulnerability_lookup_origin": "caeb2787-0d58-4236-9039-7c86c3e566f3", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-21193", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/04ad8abe-86a6-4dd1-a82b-069bd507e6c7", "content": "", "creation_timestamp": "2026-06-23T14:04:41.697091Z"}]}