Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://kb.cert.org/vuls/id/158530
- https://learn.microsoft.com/en-us/windows/security/application-security/applicat
- https://learn.microsoft.com/en-us/windows/win32/secauthz/security-descriptor-def
- https://www.kb.cert.org/vuls/id/158530
FAQ
What is CVE-2026-8501?
CVE-2026-8501 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 IOC...
How severe is CVE-2026-8501?
CVE-2026-8501 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-8501?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.