{"id":"CVE-2021-23139","aliases":["EUVD-2021-10256","GHSA-w2wf-2p6x-gv2x"],"status":"published","title":"A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1...","description":"A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an attacker to crash the CGI program on affected installations.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.0111,"percentile":0.66386,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2021-10-21T07:46:02Z","modified":"2026-06-17T03:38:20Z","products":[{"vendor":"trend micro","product":"trend micro apex one"},{"vendor":"trend micro","product":"trend micro worry-free business security"},{"vendor":"trend micro, inc.","product":"trend micro worry-free business security"},{"vendor":"trendmicro","product":"apex_one"},{"vendor":"trendmicro","product":"worry-free_business_security"},{"vendor":"trendmicro","product":"worry-free_business_security_services"}],"references":[{"url":"https://success.trendmicro.com/solution/000289229","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://success.trendmicro.com/solution/000289230","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23139"},{"url":"https://github.com/advisories/GHSA-w2wf-2p6x-gv2x"}],"sources":{"cve":[{"id":"CVE-2021-23139","description":"A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an attacker to crash the CGI program on affected installations.","status":"published","published":"2021-10-21T07:46:02Z","modified":"2024-08-03T18:58:26.372Z","updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-10256","description":"A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an attacker to crash the CGI program on affected installations.","status":"published","published":"2021-10-21T07:46:02Z","modified":"2024-08-03T18:58:26Z","updated_at":"2026-11-03T03:25:00.591933Z"}],"ghsa":[{"id":"GHSA-w2wf-2p6x-gv2x","title":"A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1...","description":"A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an attacker to crash the CGI program on affected installations.","status":"published","published":"2022-05-24T19:18:30Z","modified":"2023-01-30T05:02:58Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:46:44.594683Z"}],"nvd":[{"id":"CVE-2021-23139","description":"A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an attacker to crash the CGI program on affected installations.","status":"published","published":"2021-10-21T08:15:07.093Z","modified":"2026-06-17T03:38:20.217Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:07:00.137719Z"}]}}