{"id":"CVE-2026-97732","aliases":["EUVD-2026-86513","GHSA-xmqc-9f27-v5xv"],"status":"published","title":"IRONMACE Ironshield 1.0.0.167 has a tvk.sys kernel-mode driver that authenticates client...","description":"IRONMACE Ironshield 1.0.0.167 has a tvk.sys kernel-mode driver that authenticates client executables by checking for expected publisher and root-certificate strings in WIN_CERTIFICATE data (\"IRONMACE Co., Ltd.\" and \"DigiCert Trusted Root G4\") instead of parsing and validating the PKCS signature data. As a result, a local unprivileged attacker may bypass this via crafted certificate data and obtain access to privileged IOCTL functionality.","severity":{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00056,"percentile":0.00003,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2026-09-25T03:29:16Z","modified":"2026-09-30T17:32:07Z","products":[{"vendor":"ironmace","product":"ironshield"}],"references":[{"url":"https://github.com/hseoa/ironshield-analysis"},{"url":"https://store.steampowered.com/eula/2016590_eula_0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97732"},{"url":"https://github.com/advisories/GHSA-xmqc-9f27-v5xv"}],"sources":{"cve":[{"id":"CVE-2026-97732","description":"IRONMACE Ironshield 1.0.0.167 has a tvk.sys kernel-mode driver that authenticates client executables by checking for expected publisher and root-certificate strings in WIN_CERTIFICATE data (\"IRONMACE Co., Ltd.\" and \"DigiCert Trusted Root G4\") instead of parsing and validating the PKCS signature data. As a result, a local unprivileged attacker may bypass this via crafted certificate data and obtain access to privileged IOCTL functionality.","status":"published","published":"2026-09-25T03:29:16.344Z","modified":"2026-09-25T13:43:14.628Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T13:44:18.366073Z"}],"euvd":[{"id":"EUVD-2026-86513","description":"IRONMACE Ironshield 1.0.0.167 has a tvk.sys kernel-mode driver that authenticates client executables by checking for expected publisher and root-certificate strings in WIN_CERTIFICATE data (\"IRONMACE Co., Ltd.\" and \"DigiCert Trusted Root G4\") instead of parsing and validating the PKCS signature data. As a result, a local unprivileged attacker may bypass this via crafted certificate data and obtain access to privileged IOCTL functionality.","status":"published","published":"2026-09-25T03:29:16Z","modified":"2026-09-25T13:43:14Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:27:55.413842Z"}],"ghsa":[{"id":"GHSA-xmqc-9f27-v5xv","title":"IRONMACE Ironshield 1.0.0.167 has a tvk.sys kernel-mode driver that authenticates client...","description":"IRONMACE Ironshield 1.0.0.167 has a tvk.sys kernel-mode driver that authenticates client executables by checking for expected publisher and root-certificate strings in WIN_CERTIFICATE data (\"IRONMACE Co., Ltd.\" and \"DigiCert Trusted Root G4\") instead of parsing and validating the PKCS signature data. As a result, a local unprivileged attacker may bypass this via crafted certificate data and obtain access to privileged IOCTL functionality.","status":"published","published":"2026-09-25T06:30:32Z","modified":"2026-09-25T06:31:17Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T15:12:24.174061Z"}],"nvd":[{"id":"CVE-2026-97732","description":"IRONMACE Ironshield 1.0.0.167 has a tvk.sys kernel-mode driver that authenticates client executables by checking for expected publisher and root-certificate strings in WIN_CERTIFICATE data (\"IRONMACE Co., Ltd.\" and \"DigiCert Trusted Root G4\") instead of parsing and validating the PKCS signature data. As a result, a local unprivileged attacker may bypass this via crafted certificate data and obtain access to privileged IOCTL functionality.","status":"published","published":"2026-09-25T04:17:50.537Z","modified":"2026-09-30T17:32:07.107Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:12:51.388161Z"}]}}