PT-2026-58180 · Microsoft · Windows Kernel+1

CVE-2026-49808 · Published 2026-07-14 · Updated 2026-07-15

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A race condition exists in the Windows Kernel, occurring when concurrent execution uses a shared resource with improper synchronization. This flaw allows an authorized attacker to elevate privileges locally.

Recommendations Install KB5101650.

Fix

Use After Free

Race Condition

Weakness Enumeration

CWE-416

CWE-362

Related Identifiers

CVE-2026-49808

Affected Products

Windows

Windows Kernel

References · 5

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-49808 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-49808 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-49808 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49808 · Vendor Advisory
• https://twitter.com/windowsforum/status/2077246313087836348 · Twitter Post