PT-2026-58177 · Microsoft · Windows

CVE-2026-49805 · Published 2026-07-14 · Updated 2026-07-15

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 (affected versions not specified)

Description Improper access control in Windows Win32K allows an authorized attacker to elevate privileges locally, potentially granting full control of the system.

Recommendations Apply the July 2026 Windows updates.

Fix

LPE

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

BDU:2026-10017

CVE-2026-49805

ZDI-26-415

Affected Products

Windows

References · 7

• https://bdu.fstec.ru/vul/2026-10017 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-49805 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-49805 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49805 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-26-415 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-49805 · Security Note
• https://twitter.com/windowsforum/status/2077241792269877648 · Twitter Post