PT-2026-47909 · Microsoft · Windows Kernel+1

CVE-2026-42984 · Published 2026-06-09 · Updated 2026-06-09

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows Kernel (affected versions not specified)

Description A use after free issue in the Windows Kernel allows an authorized attacker to elevate privileges locally, which can lead to full system compromise.

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

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2026-08203

CVE-2026-42984

Affected Products

Windows

Windows Kernel

References · 5

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-42984 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42984 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-42984 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-08203 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42984 · Security Note