{"id":"CVE-2024-40721","aliases":["EUVD-2024-38586","GHSA-f6q3-hjwj-2j45"],"status":"published","title":"CHANGING Information Technology TCBServiSign Windows Version - Improper Input Validation","description":"The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause the TCBServiSign to load a DLL from an arbitrary path.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00564,"percentile":0.47372,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2024-08-02T10:14:39Z","modified":"2026-06-17T07:46:24Z","products":[{"vendor":"changing information technology","product":"tcbservisign windows version"},{"vendor":"changingtec","product":"servisign"},{"vendor":"changingtec","product":"tcb_servisign"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-7966-8c6c3-1.html","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://www.twcert.org.tw/en/cp-139-7972-01a6e-2.html","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-40721"},{"url":"https://github.com/advisories/GHSA-f6q3-hjwj-2j45"}],"sources":{"cve":[{"id":"CVE-2024-40721","title":"CHANGING Information Technology TCBServiSign Windows Version - Improper Input Validation","description":"The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause the TCBServiSign to load a DLL from an arbitrary path.","status":"published","published":"2024-08-02T10:14:39.889Z","modified":"2024-08-02T13:47:51.345Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:34:06.811965Z"}],"euvd":[{"id":"EUVD-2024-38586","description":"The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause the TCBServiSign to load a DLL from an arbitrary path.","status":"published","published":"2024-08-02T10:14:39Z","modified":"2024-08-02T13:47:51Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:50:06.256765Z"}],"ghsa":[{"id":"GHSA-f6q3-hjwj-2j45","title":"The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not...","description":"The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause the TCBServiSign to load a DLL from an arbitrary path.","status":"published","published":"2024-08-02T12:31:43Z","modified":"2024-08-02T12:31:48Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:57:50.552665Z"}],"nvd":[{"id":"CVE-2024-40721","description":"The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause the TCBServiSign to load a DLL from an arbitrary path.","status":"published","published":"2024-08-02T11:16:43.02Z","modified":"2026-06-17T07:46:24.39Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:10:15.933769Z"}]}}