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.
Published: 2026-09-25
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 25 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Ironmace
Ironmace ironshield
Vendors & Products Ironmace
Ironmace ironshield

Fri, 25 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 25 Sep 2026 09:15:00 +0000

Type Values Removed Values Added
Title Unprivileged Certificate Bypass in IRONMACE Ironshield tvk.sys Driver

Fri, 25 Sep 2026 03:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 5.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Subscriptions

Ironmace Ironshield
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-25T13:43:14.628Z

Reserved: 2026-09-25T03:29:15.535Z

Link: CVE-2026-97732

cve-icon Vulnrichment

Updated: 2026-09-25T13:43:10.412Z

cve-icon NVD

Status : Received

Published: 2026-09-25T04:17:50.537

Modified: 2026-09-25T14:17:26.387

Link: CVE-2026-97732

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-25T14:14:44Z

Weaknesses
  • CWE-347

    Improper Verification of Cryptographic Signature