{"cve_id":"CVE-2022-26143","published":"2022-03-10T17:47:32.813000+00:00","last_modified":"2026-06-17T04:34:46.337000+00:00","vuln_status":"Analyzed","description":"The TP-240 (aka tp240dvr) component in Mitel MiCollab before 9.4 SP1 FP1 and MiVoice Business Express through 8.1 allows remote attackers to obtain sensitive information and cause a denial of service (performance degradation and excessive outbound traffic). This was exploited in the wild in February and March 2022 for the TP240PhoneHome DDoS attack.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","base_score":9.8,"base_severity":"CRITICAL","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-306"],"in_kev":true,"kev_date_added":"2022-03-25","kev_ransomware":false,"epss_score":0.87325,"epss_percentile":0.99753,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["AUTH_BYPASS","CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:59:04.100714+00:00","first_seen":"2022-03-10T17:47:32.813000+00:00","kev_first_seen":"2022-03-25T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["mitel"],"products":["micollab","mivoice_business_express"],"affected":[{"vendor":"mitel","product":"micollab","ranges":["< 9.4","9.4"]},{"vendor":"mitel","product":"mivoice_business_express","ranges":["≤ 8.1"]}]}