CVE-2026-97732: CWE-347 Improper Verification of Cryptographic Signature in IRONMACE Ironshield
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.
AI Analysis
Technical Summary
The vulnerability in IRONMACE Ironshield 1.0.0.167 arises from improper verification of cryptographic signatures (CWE-347) in the tvk.sys kernel-mode driver. The driver authenticates client executables by searching for specific publisher and root-certificate strings ('IRONMACE Co., Ltd.' and 'DigiCert Trusted Root G4') within WIN_CERTIFICATE data rather than correctly parsing and validating the PKCS signature. This weakness enables a local attacker without privileges to craft certificate data that bypasses the authentication mechanism and obtain privileged IOCTL access.
Potential Impact
A local unprivileged attacker can exploit this vulnerability to bypass the intended authentication checks and gain access to privileged IOCTL functionality within the kernel-mode driver. This could lead to unauthorized actions at a privileged level, potentially compromising system integrity. The CVSS score of 5.1 (medium severity) reflects limited scope as the attack requires local access and has low complexity.
Mitigation Recommendations
No patch or official fix information is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict local access to trusted users only and monitor for suspicious local activity related to the Ironshield driver.
CVE-2026-97732: CWE-347 Improper Verification of Cryptographic Signature in IRONMACE Ironshield
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.
CVSS v3.1
Score 5.1medium
Affected software
IRONMACE
Ironshield
pkg:github/hseoa/ironshieldRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in IRONMACE Ironshield 1.0.0.167 arises from improper verification of cryptographic signatures (CWE-347) in the tvk.sys kernel-mode driver. The driver authenticates client executables by searching for specific publisher and root-certificate strings ('IRONMACE Co., Ltd.' and 'DigiCert Trusted Root G4') within WIN_CERTIFICATE data rather than correctly parsing and validating the PKCS signature. This weakness enables a local attacker without privileges to craft certificate data that bypasses the authentication mechanism and obtain privileged IOCTL access.
Potential Impact
A local unprivileged attacker can exploit this vulnerability to bypass the intended authentication checks and gain access to privileged IOCTL functionality within the kernel-mode driver. This could lead to unauthorized actions at a privileged level, potentially compromising system integrity. The CVSS score of 5.1 (medium severity) reflects limited scope as the attack requires local access and has low complexity.
Mitigation Recommendations
No patch or official fix information is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict local access to trusted users only and monitor for suspicious local activity related to the Ironshield driver.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-09-25T03:29:15.535Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab5ef06f7a7c5410648e84c
Added to database: 09/25/2026, 03:48:22 UTC
Last enriched: 09/25/2026, 04:02:40 UTC
Last updated: 09/25/2026, 04:33:14 UTC
Views: 5
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