{"vulnerability": "cve-2021-27877", "sightings": [{"uuid": "d7114695-3e79-4553-8473-6a64b78e22eb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "MISP/3c19819c-1dac-4ef2-bfed-be5efa7e0123", "content": "", "creation_timestamp": "2023-06-14T21:10:04.000000Z"}, {"uuid": "ee5feb48-49a1-4e6b-b430-31cad48fe674", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://feedsin.space/feed/CISAKevBot/items/2971794", "content": "", "creation_timestamp": "2024-12-24T20:34:08.668829Z"}, {"uuid": "56a455bd-d546-41b8-9f43-aadffbcee4bf", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-06T03:13:45.000000Z"}, {"uuid": "a8e5aec1-914b-46cd-be90-b227825d4554", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-23T04:10:36.000000Z"}, {"uuid": "eedda610-244b-409c-be27-37771dfd658e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "MISP/3c19819c-1dac-4ef2-bfed-be5efa7e0123", "content": "", "creation_timestamp": "2025-02-23T02:10:29.000000Z"}, {"uuid": "b96a7a34-8b36-491f-ac62-1acdacd71ad0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "confirmed", "source": "https://github.com/projectdiscovery/nuclei-templates/tree/main/network/cves/2021/CVE-2021-27877.yaml", "content": "", "creation_timestamp": "2025-10-22T09:08:54.000000Z"}, {"uuid": "27bbeeb4-ccbf-41e4-89a2-1914420cc2d3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://bsky.app/profile/beikokucyber.bsky.social/post/3m3vb25cxjb2e", "content": "", "creation_timestamp": "2025-10-23T21:02:32.401175Z"}, {"uuid": "c6444dd7-f812-448a-92ff-315a98386523", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "MISP/d17bd6ef-d68b-317b-ac33-cdbc44c5fc57", "content": "", "creation_timestamp": "2025-08-31T03:12:59.000000Z"}, {"uuid": "e06bd07b-0c81-492b-8a48-f59353bd5700", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/veritas/beagent_sha_auth_rce.rb", "content": "", "creation_timestamp": "2022-09-23T16:55:16.000000Z"}, {"uuid": "64099aaf-a075-4ebd-9183-c2aa66028af0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/69c2bbb8-9db3-478c-bfac-40f615b5d907", "content": "", "creation_timestamp": "2026-02-02T12:27:01.781626Z"}, {"uuid": "f990581d-4c46-4979-a98b-e83eaa32592c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/69c2bbb8-9db3-478c-bfac-40f615b5d907", "content": "", "creation_timestamp": "2026-02-02T12:27:01.781626Z"}, {"uuid": "85eddb17-66f1-4fcc-8a18-14e09070adef", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://t.me/GithubRedTeam/91571", "content": "", "creation_timestamp": "2026-07-13T22:00:14.195177Z"}, {"uuid": "8c63974c-4fe9-4f78-8fb7-61dc74336663", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://t.me/GithubRedTeam/91571", "content": "", "creation_timestamp": "2026-07-14T00:00:31.645928Z"}, {"uuid": "23f910ee-971e-4cca-9cdd-499a708ea5da", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://t.me/arpsyndicate/1052", "content": "#ExploitObserverAlert\n\nCVE-2021-27877\n\nDESCRIPTION: Exploit Observer has 3 entries related to CVE-2021-27877. An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This authentication scheme is no longer used in current versions of the product, but hadn't yet been disabled. An attacker could remotely exploit this scheme to gain unauthorized access to an Agent and execute privileged commands.\n\nFIRST-EPSS: 0.631890000\nNVD-IS: 5.9\nNVD-ES: 3.9", "creation_timestamp": "2023-12-03T23:05:32.000000Z"}, {"uuid": "a52e418d-bef3-42ac-8e92-6489c101c385", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://t.me/arpsyndicate/2684", "content": "#ExploitObserverAlert\n\nCVE-2021-27877\n\nDESCRIPTION: Exploit Observer has 5 entries related to CVE-2021-27877. An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This authentication scheme is no longer used in current versions of the product, but hadn't yet been disabled. An attacker could remotely exploit this scheme to gain unauthorized access to an Agent and execute privileged commands.\n\nFIRST-EPSS: 0.675550000\nNVD-IS: 5.9\nNVD-ES: 3.9", "creation_timestamp": "2024-01-08T21:51:56.000000Z"}, {"uuid": "18c81fbf-bf98-4ebb-b424-c51f27047f01", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "exploited", "source": "https://t.me/KomunitiSiber/83", "content": "CISA Warns of 5 Actively Exploited Security Flaws: Urgent Action Required\nhttps://thehackernews.com/2023/04/cisa-warns-of-5-actively-exploited.html\n\nThe U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added\u00a0five security flaws\u00a0to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation in the wild.\nThis includes three high-severity flaws in the Veritas Backup Exec Agent software (CVE-2021-27876, CVE-2021-27877, and CVE-2021-27878) that could lead to the execution of privileged commands", "creation_timestamp": "2023-04-11T08:50:00.000000Z"}, {"uuid": "0d08278c-3eab-4dd1-8731-e48055b58082", "vulnerability_lookup_origin": "caeb2787-0d58-4236-9039-7c86c3e566f3", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27877", "type": "exploited", "source": "https://db.gcve.eu/known-exploited-vulnerabilities-catalog/ae26d55a-bc51-4544-bcb0-0d24721e1e79", "content": "", "creation_timestamp": "2026-06-23T11:14:05.378168Z"}, {"uuid": "0d0240a1-c1d4-411a-862e-7d92e3e41c80", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/91571", "content": "", "creation_timestamp": "2026-07-15T00:00:28.037871Z"}, {"uuid": "1012aa96-4866-4043-b939-a24b04e65662", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "Telegram/N-itZBcSRnujRmGnkNFuEOhxkLSDFSa9vsq0ge4P9bz5J50", "content": "", "creation_timestamp": "2026-07-16T19:00:23.830464Z"}, {"uuid": "19bee2cd-7999-41da-b5be-da5527906b9b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "Telegram/1igOYMzvw2rqgDPi6OnN2hDYmzyMT22niJnTHQ7i5M8o-HY", "content": "", "creation_timestamp": "2026-07-16T19:00:23.605318Z"}, {"uuid": "a59a597f-8159-4e3b-a3a3-82b7eb3211c2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "Telegram/N-itZBcSRnujRmGnkNFuEOhxkLSDFSa9vsq0ge4P9bz5J50", "content": "", "creation_timestamp": "2026-07-17T00:00:40.909735Z"}, {"uuid": "a1ead907-0ec9-4395-91ba-9211e53ca059", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "Telegram/1igOYMzvw2rqgDPi6OnN2hDYmzyMT22niJnTHQ7i5M8o-HY", "content": "", "creation_timestamp": "2026-07-17T00:00:40.695415Z"}, {"uuid": "0068616e-5cda-4ad0-90e3-dfc8c5bb189b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "published-proof-of-concept", "source": "Telegram/1igOYMzvw2rqgDPi6OnN2hDYmzyMT22niJnTHQ7i5M8o-HY", "content": "", "creation_timestamp": "2026-07-18T00:00:10.540092Z"}, {"uuid": "299d3645-f38f-4434-a83d-1d692f81aed6", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "published-proof-of-concept", "source": "Telegram/N-itZBcSRnujRmGnkNFuEOhxkLSDFSa9vsq0ge4P9bz5J50", "content": "", "creation_timestamp": "2026-07-18T00:00:10.352864Z"}, {"uuid": "3a1c0335-f38e-4494-9578-85c0ce061837", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://t.me/EchelonEyes/1405", "content": "", "creation_timestamp": "2026-07-26T02:02:28.706682Z"}, {"uuid": "30486a9f-4be3-450f-aed6-cb023f310839", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://t.me/EchelonEyes/1405", "content": "", "creation_timestamp": "2026-07-27T00:01:05.422232Z"}, {"uuid": "fa581d41-4d97-463a-b643-e57e198bc6a1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "seen", "source": "https://t.me/EchelonEyes/1405", "content": "", "creation_timestamp": "2026-07-28T00:00:07.768287Z"}, {"uuid": "80b71b83-a66b-4666-9111-f8f0338aef21", "vulnerability_lookup_origin": "caeb2787-0d58-4236-9039-7c86c3e566f3", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/4d2a3694-8d2f-40f9-be9d-9864a07ab493", "content": "", "creation_timestamp": "2026-06-19T12:46:56.947968Z"}, {"uuid": "7d9677d5-b571-4980-986d-d17c39b9e4cb", "vulnerability_lookup_origin": "caeb2787-0d58-4236-9039-7c86c3e566f3", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27877", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/cd799392-22f9-4142-94fb-2a0e2ccc9ddc", "content": "", "creation_timestamp": "2026-06-23T14:05:39.082167Z"}]}