PT-2026-58283 · Microsoft · Windows

CVE-2026-58640 · Published 2026-05-28 · 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 (affected versions not specified)

Description A heap-based buffer overflow exists in the Windows NTFS file system. This issue occurs when the system fails to properly manage dynamic memory, which may allow an authorized attacker to execute arbitrary code locally.

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

RCE

DoS

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2026-07474

CVE-2026-58640

Affected Products

Windows

References · 6

• https://bdu.fstec.ru/vul/2026-07474 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58640 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-58640 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-58640 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-58640 · Security Note
• https://twitter.com/immortalp0ny/status/2077324969831215411 · Twitter Post