{"id":"CVE-2021-31841","aliases":["EUVD-2021-18716","GHSA-3gcg-c4cr-6g36"],"status":"published","title":"DLL side loading vulnerability in MA for Windows","description":"A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gaining elevated permissions and the ability to execute arbitrary code as the system user, through not checking the DLL signature.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00241,"percentile":0.15426,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347","CWE-426"],"published":"2021-09-22T13:25:11Z","modified":"2026-06-17T03:52:19Z","products":[{"vendor":"mcafee","product":"mcafee_agent"},{"vendor":"mcafee,llc","product":"mcafee agent for windows"}],"references":[{"url":"https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10369","tags":["x_refsource_CONFIRM","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31841"},{"url":"https://github.com/advisories/GHSA-3gcg-c4cr-6g36"}],"sources":{"cve":[{"id":"CVE-2021-31841","title":"DLL side loading vulnerability in MA for Windows","description":"A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gaining elevated permissions and the ability to execute arbitrary code as the system user, through not checking the DLL signature.","status":"published","published":"2021-09-22T13:25:11Z","modified":"2024-08-03T23:10:30.223Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-426","CWE-347"],"updated_at":"2026-11-02T14:33:05.665371Z"}],"euvd":[{"id":"EUVD-2021-18716","description":"A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gaining elevated permissions and the ability to execute arbitrary code as the system user, through not checking the DLL signature.","status":"published","published":"2021-09-22T13:25:11Z","modified":"2024-08-03T23:10:30Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:24:37.97373Z"}],"ghsa":[{"id":"GHSA-3gcg-c4cr-6g36","title":"A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local...","description":"A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gaining elevated permissions and the ability to execute arbitrary code as the system user, through not checking the DLL signature.","status":"published","published":"2022-05-24T19:15:26Z","modified":"2023-11-24T05:04:41Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-347","CWE-426"],"updated_at":"2026-11-02T14:55:05.78804Z"}],"nvd":[{"id":"CVE-2021-31841","description":"A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gaining elevated permissions and the ability to execute arbitrary code as the system user, through not checking the DLL signature.","status":"published","published":"2021-09-22T14:15:07.497Z","modified":"2026-06-17T03:52:19.853Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-347","CWE-426"],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}