Vulnerability Report

CVE-2026-8501

RCE

Title: Improper access control in PCTCore64.sys allows privilege escalation

RCE

Proof Of Concept

PoC Available for CVE-2026-8501

CWE Category NVD-CWE-noinfo
Published Date Jun 01, 2026
Modified Date Jun 01, 2026
Exploit Status Available
Score 7.8 CVSS v
Exploit Probability (EPSS)
0.13%

Vulnerability Summary

CVE-2026-8501: 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.

Impacted Vendors

Analysis in Progress...

Reference Links

https://kb.cert.org/vuls/id/158530 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
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-8501 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/BlackSnufkin/BYOVD
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.