PT-2026-58401 · Microsoft · Ntfs+1

CVE-2026-50422 · Published 2026-07-14 · Updated 2026-07-15

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 out-of-bounds read in the Windows NTFS file system allows an authorized local attacker to elevate their privileges. An out-of-bounds read occurs when a program reads data past the end of the intended buffer, potentially exposing sensitive memory contents.

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

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-50422

Affected Products

Ntfs

Windows

References · 5

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50422 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50422 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50422 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50422 · Security Note
• https://twitter.com/windowsforum/status/2077318288019734738 · Twitter Post