{"schema":"threatline.record/2","record":{"id":"CVE-2021-27876","aliases":[],"summary":"Veritas Backup Exec Agent File Access Vulnerability","details":"Veritas Backup Exec (BE) Agent contains a file access vulnerability that could allow an attacker to specially craft input parameters on a data management protocol command to access files on the BE Agent machine.","categories":["Unclassified"],"product":"Backup Exec Agent","vendor":"Veritas","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-27876","source_modified_at":"2025-10-21T23:25:53.626Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}],"defaultStatus":null}],"fixed_versions":[],"cvss":8.1,"severity":"High","kev":{"listed":true,"date_added":"2023-04-07","due_date":"2023-04-28","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Known"},"epss":{"probability":0.13518,"percentile":0.96448,"score_date":"2026-10-23"},"published_at":"2021-03-01T21:49:06.000Z","modified_at":"2025-10-21T23:25:53.626Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2021-27876","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:25:53.626Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/veritas/beagent_sha_auth_rce.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2021-03-01"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2021-27876","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","EPSS"],"references":[{"url":"https://www.veritas.com/support/en_US/security/VTS21-001","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27876","source":"CISA KEV"},{"source":"CVE List","url":"https://www.veritas.com/content/support/en_US/security/VTS21-001#issue2","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27876","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2023-12-22T05:01:02.404828Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"Veritas Backup Exec Agent Remote Code Execution","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/veritas/beagent_sha_auth_rce.rb","date":"2021-03-01","added":"2025-12-17","check":true}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2025-10-21T23:25:53.626Z","content_hash":"4071cbdf9f5add84e275e3e250a63a989bb6fcc11221f1f2807b0974d80b5d2a"}}