Is CVE-2026-8501 in the CISA KEV catalog?

No. CVE-2026-8501 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-8501?

CVE-2026-8501 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2026-8501?

CVE-2026-8501 has an EPSS score of 0.16% (6th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-8501?

No published fix for CVE-2026-8501 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-8501

HIGH

7.8

CVSS v3

NVD

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.

CWE-782

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.16%probability of exploitation in 30 days

6thpercentile

Low risk: more likely to be exploited than 6% of all known CVEs.

References

Other references4

Related Vulnerabilities

Other CWE-782 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-21551	High	8.8	58%	KEV	-
CVE-2025-7771	Unscored	-	6.8%	-	-
CVE-2024-32370	Critical	9.8	1.0%	-	Fix
CVE-2024-30804	Critical	9.8	0.8%	-	-
CVE-2024-39251	Critical	10.0	0.7%	-	-
CVE-2024-33220	High	8.8	0.7%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-01.