{"id":"CVE-2022-40139","published":"2022-09-19T18:15:09Z","modified":"2026-06-17T05:01:01Z","title":"Trend Micro Apex One and Apex One as a Service Improper Validation Vulnerability","vendor":"Trend Micro","product":"Apex One and Apex One as a Service","tier":"core","eol":null,"description":{"text":"Improper validation of some components used by the rollback mechanism in Trend Micro Apex One and Trend Micro Apex One as a Service clients could allow a Apex One server administrator to instruct affected clients to download an unverified rollback package, which could lead to remote code execution. Please note: an attacker must first obtain Apex One server administration console access in order to exploit this vulnerability.","provenance":"source","from":"NVD"},"summary":{"text":"Trend Micro Apex One and Apex One as a Service clients have an improper validation flaw in some components used by the rollback mechanism. An attacker with administrator access to the Apex One server console could instruct affected clients to download and install an unverified rollback package, which could lead to remote code execution.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:14:18Z"},"cvss":{"score":7.2,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.03439,"percentile":0.88941,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2022-09-15","dueDate":"2022-10-06","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://success.trendmicro.com/dcx/s/solution/000291528?language=en_US;  https://nvd.nist.gov/vuln/detail/CVE-2022-40139","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-09-13","exploitedFirstSeen":"2022-09-13","ransomware":false,"evidence":[{"url":"https://www.bleepingcomputer.com/news/security/trend-micro-warns-of-actively-exploited-apex-one-rce-vulnerability/","date":"2022-09-13"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-09-15"},{"url":"https://success.trendmicro.com/dcx/s/solution/000291528","date":"2023-02-16"},{"url":"https://www.mandiant.com/resources/blog/zero-days-exploited-2022","date":"2023-03-20"}],"evidenceTotal":4,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-353","name":"Missing Support for Integrity Check"},{"id":"CWE-641","name":"Improper Restriction of Names for Files and Other Resources"}],"references":[{"url":"https://success.trendmicro.com/solution/000291528","tags":["Patch","Vendor Advisory"]},{"url":"https://success.trendmicro.com/solution/000291528","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-40139","tags":["US Government Resource"]}],"techniques":[{"id":"T1078","name":"Valid Accounts","tactics":["initial-access","persistence","privilege-escalation","stealth"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: requires prior valid administrator console credentials","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"an attacker must first obtain Apex One server administration console access","start":313,"end":388}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: unverified package executes code on endpoints","mappingType":"primary_impact","evidence":[{"from":"description","quote":"could lead to remote code execution","start":263,"end":298}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1072","name":"Software Deployment Tools","tactics":["execution","lateral-movement"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: abuses management server to push software to clients","mappingType":"primary_impact","evidence":[{"from":"description","quote":"instruct affected clients to download an unverified rollback package","start":187,"end":255}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2022-43457","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-43457","exploited":true,"exploitedSince":"2022-09-15","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1078"],"provenance":"ai"},{"stage":"primary","techniques":["T1059","T1072"],"provenance":"ai"}],"timeline":[{"date":"2022-09-13","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.bleepingcomputer.com/news/security/trend-micro-warns-of-actively-exploited-apex-one-rce-vulnerability/","provenance":"source"},{"date":"2022-09-15","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-09-15","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-43457","provenance":"source"},{"date":"2022-09-19","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-40139","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":60.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1507 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":17.79,"detail":"percentile 0.8894"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.04,"detail":"base score 7.2"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}