CVE Catalog

CVE-2026-97732

MediumCVSS 5.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.06%

0th percentile - higher than 0% of all known CVEs

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 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.

Risk Assessment

A local unprivileged attacker can gain access to privileged kernel operations, leading to privilege escalation and full system compromise.

Recommendation

Update the tvk.sys driver to a version that properly parses and validates PKCS signature data, or restrict access to the driver.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS