CVE-2026-97732 IRONMACE CVE debrief

Who should care

Defenders responsible for systems using IRONMACE Ironshield 1.0.0.167 should assess exposure and verify the authenticity of client executables. This includes reviewing and updating IRONMACE Ironshield to the latest version if available, and ensuring that compensating controls are in place for exposed systems while remediation is scheduled and verified.

Why it matters

A local unprivileged attacker may bypass authentication for privileged IOCTL functionality in IRONMACE Ironshield 1.0.0.167 due to improper validation of certificate data. Defenders should prioritize verifying the authenticity of client executables and assessing exposure of systems using IRONMACE Ironshield 1.0.0.167.

• A local unprivileged attacker may bypass authentication for privileged IOCTL functionality
• Defenders need to verify the authenticity of client executables used with IRONMACE Ironshield 1.0.0.167
• Additional verification is needed to confirm affected versions and remediation

Technical summary

The IRONMACE Ironshield 1.0.0.167 kernel-mode driver (tvk.sys) checks for expected publisher and root-certificate strings in WIN_CERTIFICATE data instead of parsing and validating the PKCS signature data, allowing a local unprivileged attacker to bypass authentication via crafted certificate data. This improper validation of certificate data enables an attacker to obtain access to privileged IOCTL functionality. Defenders should prioritize verifying the authenticity of client executables and assessing exposure of systems using IRONMACE Ironshield 1.0.0.167.

Defensive priority

Defenders should prioritize verifying the authenticity of client executables and assessing exposure of systems using IRONMACE Ironshield 1.0.0.167.

Recommended defensive actions

• Verify the authenticity of client executables used with IRONMACE Ironshield 1.0.0.167
• Assess exposure of systems using IRONMACE Ironshield 1.0.0.167
• Review and update IRONMACE Ironshield to the latest version if available
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional verification is needed to confirm affected versions and remediation. The IRONMACE Ironshield 1.0.0.167 kernel-mode driver (tvk.sys) improperly validates certificate data, allowing a local unprivileged attacker to bypass authentication. Defenders should verify the authenticity of client executables and assess exposure of systems using IRONMACE Ironshield 1.0.0.167.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.