PT-2026-48014 · Microsoft · Windows Kernel+1

CVE-2026-45653 · 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 affect the system. Use after free is a condition where a program continues to use a pointer after it has been freed, potentially leading to memory corruption.

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

DoS

Use After Free

Heap Based Buffer Overflow

Weakness Enumeration

CWE-416

CWE-122

Related Identifiers

BDU:2026-08177

CVE-2026-45653

Affected Products

Windows

Windows Kernel

References · 5

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-45653 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-45653 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45653 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45653 · Security Note
• https://bdu.fstec.ru/vul/2026-08177 · Security Note