PT-2026-24284 · Microsoft · Windows

Chenjian · Published 2026-03-10 · Updated 2026-03-17 · CVE-2026-24290

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 versions (affected versions not specified)

Description An improper access control issue exists in Windows Projected File System. This allows an authorized attacker to elevate privileges locally. The issue relates to insufficient access restrictions within the Projected File System (ProjFS). Exploitation may allow an attacker to increase their system privileges.

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

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

BDU:2026-02967

CVE-2026-24290

Affected Products

Windows

References · 8

• https://osv.dev/vulnerability/CVE-2026-24290 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-24290 · Security Note
• https://msrc.microsoft.com/update-guide/advisory/CVE-2026-24290 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-24290 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02967 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-24290 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24290 · Vendor Advisory
• https://twitter.com/CVEnew/status/2033755398532935829 · Twitter Post