PT-2026-40178 · Microsoft · Win32K+1

Owen Mccullough · Published 2026-05-12 · Updated 2026-06-01 · CVE-2026-35417

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 Windows Win32K (affected versions not specified)

Description A type confusion issue in the ICOMP component of Windows Win32K allows an authorized attacker to elevate privileges locally. Type confusion occurs when a program accesses a resource using an incompatible data type, leading to unexpected behavior.

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

DoS

Type Confusion

Weakness Enumeration

CWE-843

Related Identifiers

BDU:2026-06594

CVE-2026-35417

Affected Products

Win32K

Windows

References · 6

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-35417 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35417 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-35417 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-35417 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06594 · Security Note
• https://t.me/cveNotify/165524 · Telegram Post