{"id":"CVE-2026-97732","title":"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…","summary":"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…","severity":"medium","cvss":5.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-347"],"vendor":"IRONMACE","product":"Ironshield","affected":["Ironshield 1.0.0.167"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T14:17:26.387","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97732","references":[{"url":"https://github.com/hseoa/ironshield-analysis","label":"cve@mitre.org"},{"url":"https://store.steampowered.com/eula/2016590_eula_0","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"epss":0.00056,"epssPercentile":0.00003,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-25T13:42:40.635415Z"},"ingestedAt":"2026-09-25T03:58:52.656Z","slug":"CVE-2026-97732","body":"## Overview\n\nIRONMACE 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":28.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}