{"id":"CVE-2026-97732","state":"PUBLISHED","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_CERTIFIC","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.","publishedAt":"2026-09-25T03:29:16.344Z","updatedAt":"2026-09-25T13:43:14.628Z","severity":{"score":5.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"mitre"},"assigner":"mitre","products":["IRONMACE Ironshield"],"affected":[{"vendor":"IRONMACE","product":"Ironshield","defaultStatus":"unknown","versions":[{"version":"1.0.0.167","status":"affected","versionType":"custom"}],"modules":["tvk.sys kernel-mode driver"],"platforms":["Windows"]}],"references":["https://github.com/hseoa/ironshield-analysis","https://store.steampowered.com/eula/2016590_eula_0"],"weaknesses":["CWE-347"],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97732.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97732","state":"PUBLISHED","datePublished":"2026-09-25T03:29:16.344Z","dateUpdated":"2026-09-25T13:43:14.628Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-09-25T03:29:15.535Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"IRONMACE","product":"Ironshield","defaultStatus":"unknown","versions":[{"version":"1.0.0.167","status":"affected","versionType":"custom"}],"modules":["tvk.sys kernel-mode driver"],"platforms":["Windows"]}],"references":[{"url":"https://github.com/hseoa/ironshield-analysis"},{"url":"https://store.steampowered.com/eula/2016590_eula_0"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-347","description":"CWE-347 Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-09-25T03:29:16.344Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-25T13:42:40.635415Z","id":"CVE-2026-97732","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-25T13:43:14.628Z"}}]}}}