CVE-2026-97732 Auth bypass in Ironshield
A local attacker can bypass authentication in the Ironshield kernel driver by spoofing certificate strings, gaining access to privileged IOCTL functionality.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-97732?
CVE-2026-97732 is a medium-severity authentication bypass vulnerability in IRONMACE Ironshield, published on 25 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-347
Which versions are affected by CVE-2026-97732?
How do I fix CVE-2026-97732?
No fix has been published for CVE-2026-97732 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-97732 being exploited?
There is no known exploitation of CVE-2026-97732 in the wild and no public exploit code.
Sources
Also known as GHSA-xmqc-9f27-v5xv.