PT-2026-45479 · Unknown · Pc Tools Internet Security

Tzachi Hazan · Published 2026-06-01 · Updated 2026-06-01 · CVE-2026-8501

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions PC Tools Internet Security (affected versions not specified)

Description Improper access control in the PCTCore64.sys Windows kernel driver 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 perform sensitive and privileged operations on the target system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-782

Related Identifiers

CVE-2026-8501

Affected Products

Pc Tools Internet Security

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-8501 · Security Note
• https://learn.microsoft.com/en-us/windows/win32/secauthz/security-descriptor-definition-language · Note
• https://learn.microsoft.com/en-us/windows/security/application-security/application-control/app-control-for-business/design/microsoft-recommended-driver-block-rules · Note
• https://kb.cert.org/vuls/id/158530 · Note
• https://twitter.com/VulmonFeeds/status/2061506164555141302 · Twitter Post
• https://t.me/CVEtracker/55516 · Telegram Post