PT-2026-58307 · Microsoft · Ntfs

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-50309

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 A heap-based buffer overflow occurs in Windows NTFS, which allows an authorized attacker to execute code locally. This issue can also enable remote attackers to execute arbitrary code and affect the system. A heap-based buffer overflow is a memory corruption error that occurs when a program writes more data to a heap-allocated buffer than it can hold.

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

RCE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-50309

Affected Products

Ntfs

References · 4

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50309 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50309 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50309 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50309 · Vendor Advisory