CVE-2026-8501
CVE-2026-8501
- State
- Published
- Severity
- 7.8 High
- Published
- Jun 1, 2026
- Updated
- Jun 1, 2026
- Reserved
- May 13, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-782 Exposed IOCTL with Insufficient Access Control
Affected Products
| Product | Versions |
|---|---|
PC Tools Internet SecuritySymantec |
|
References
- https://learn.microsoft.com/en-us/windows/security/application-security/application-control/app-control-for-business/design/microsoft-recommended-driver-block-rules
- https://learn.microsoft.com/en-us/windows/win32/secauthz/security-descriptor-definition-language
- https://kb.cert.org/vuls/id/158530
- https://www.kb.cert.org/vuls/id/158530
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