CVE-2026-8501
HIGH EPSS 5.7%
Published Jun 1, 20264w ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
Published Jun 1, 2026 4w ago
Last Modified Jun 17, 2026 2w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
5.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-782
References 4
- kb.cert.org https://kb.cert.org/vuls/id/158530
- learn.microsoft.com https://learn.microsoft.com/en-us/windows/security/application-security/application-control/app-control-for-business/design/microsoft-recommended-driver-block-rules
- learn.microsoft.com https://learn.microsoft.com/en-us/windows/win32/secauthz/security-descriptor-definition-language
- kb.cert.org https://www.kb.cert.org/vuls/id/158530
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.