PT-2026-58381 · Microsoft · Ntfs+1

CVE-2026-50402 · Published 2026-07-14 · Updated 2026-07-16

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 NTFS (affected versions not specified)

Description An incorrect conversion between numeric types in the Windows NTFS file system allows an authorized attacker with local access to elevate their privileges locally.

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

DoS

Buffer Over-read

Weakness Enumeration

CWE-126

CWE-681

Related Identifiers

CVE-2026-50402

Affected Products

Ntfs

Windows

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-50402 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50402 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50402 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50402 · Security Note
• https://twitter.com/windowsforum/status/2077322818652443098 · Twitter Post
• https://twitter.com/brunoapbotelho/status/2077798589464526890 · Twitter Post