PT-2026-58190 · Microsoft · Ntfs

Published 2026-07-14 · Updated 2026-07-15 · CVE-2026-50308

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description An integer underflow (wrap or wraparound) occurs in the Windows NTFS file system. This issue allows an unauthorized attacker to execute code locally by inducing the system to process a specially crafted disk image, archive, or USB file.

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

Heap Based Buffer Overflow

Integer Underflow

Weakness Enumeration

CWE-122

CWE-191

Related Identifiers

CVE-2026-50308

Affected Products

Ntfs

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-50308 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50308 · Vendor Advisory
• https://twitter.com/windowsforum/status/2077237002651546061 · Twitter Post