{"id":"CVE-2018-3971","aliases":["EUVD-2018-15757","GHSA-6hfq-h92h-wjrw"],"status":"published","title":"An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality...","description":"An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality of Sophos HitmanPro.Alert 3.7.6.744. A specially crafted IRP request can cause the driver to write data under controlled by an attacker address, resulting in memory corruption. An attacker can send IRP request to trigger this vulnerability.","severity":{"version":"3.0","score":9.3,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.00541,"percentile":0.45756,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-123"],"published":"2018-10-25T18:00:00Z","modified":"2026-06-17T01:58:08Z","products":[{"vendor":"sophos","product":"hitmanpro.alert"},{"vendor":"talos","product":"sophos"}],"references":[{"url":"http://www.securityfocus.com/bid/105743","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0636","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-3971"},{"url":"https://github.com/advisories/GHSA-6hfq-h92h-wjrw"}],"sources":{"cve":[{"id":"CVE-2018-3971","description":"An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality of Sophos HitmanPro.Alert 3.7.6.744. A specially crafted IRP request can cause the driver to write data under controlled by an attacker address, resulting in memory corruption. An attacker can send IRP request to trigger this vulnerability.","status":"published","published":"2018-10-25T18:00:00Z","modified":"2024-09-17T02:27:34.114Z","cvss":[{"version":"3.0","score":9.3,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"updated_at":"2026-11-02T14:35:05.262903Z"}],"euvd":[{"id":"EUVD-2018-15757","description":"An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality of Sophos HitmanPro.Alert 3.7.6.744. A specially crafted IRP request can cause the driver to write data under controlled by an attacker address, resulting in memory corruption. An attacker can send IRP request to trigger this vulnerability.","status":"published","published":"2018-10-25T18:00:00Z","modified":"2024-09-17T02:27:34Z","cvss":[{"version":"3.0","score":9.3,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:28:39.983112Z"}],"ghsa":[{"id":"GHSA-6hfq-h92h-wjrw","title":"An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality...","description":"An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality of Sophos HitmanPro.Alert 3.7.6.744. A specially crafted IRP request can cause the driver to write data under controlled by an attacker address, resulting in memory corruption. An attacker can send IRP request to trigger this vulnerability.","status":"published","published":"2022-05-13T01:01:50Z","modified":"2023-02-01T05:02:25Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-123"],"updated_at":"2026-11-02T14:49:54.32219Z"}],"nvd":[{"id":"CVE-2018-3971","description":"An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality of Sophos HitmanPro.Alert 3.7.6.744. A specially crafted IRP request can cause the driver to write data under controlled by an attacker address, resulting in memory corruption. An attacker can send IRP request to trigger this vulnerability.","status":"published","published":"2018-10-25T18:29:00.427Z","modified":"2026-06-17T01:58:08.337Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":9.3,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-123"],"updated_at":"2026-11-02T14:04:46.409324Z"}]}}