High severity7.8NVD Advisory· Published Jun 1, 2026· Updated Jun 1, 2026
CVE-2026-8501
CVE-2026-8501
Description
Improper access control in the PCTCore64.sys Windows kernel driver from PC Tools Internet Security allows user-mode processes to access the PCTCoreDriver WDM device interface and invoke privileged IOCTL handlers. A local attacker with the ability to access or load the affected driver can exploit this vulnerability to perform sensitive and privileged operations on the target system.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
4- kb.cert.org/vuls/id/158530nvd
- learn.microsoft.com/en-us/windows/security/application-security/application-control/app-control-for-business/design/microsoft-recommended-driver-block-rulesnvd
- learn.microsoft.com/en-us/windows/win32/secauthz/security-descriptor-definition-languagenvd
- www.kb.cert.org/vuls/id/158530nvd
News mentions
1- ⚡ Weekly Recap: Instagram Account Hacks, Android Zero-Day, GitHub Worm and MoreThe Hacker News · Jun 8, 2026