High severity · published Jun 1, 2026
CVE-2026-8501
No description published yet
7.8
CVSS
0.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PT
PC Tools Internet Security · Symantec
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8501
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8501
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
www.kb.cert.org
https://www.kb.cert.org/vuls/id/158530