PT-2026-24288 · Microsoft · Windows

Guillaume André + 1 · Published 2026-03-10 · Updated 2026-03-27 · CVE-2026-24294

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 A flaw in the Windows SMB Server authentication process can allow an authorized attacker to elevate privileges locally. The issue relates to deficiencies in the authentication procedure.

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

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

BDU:2026-02974

CVE-2026-24294

Affected Products

Windows

References · 16

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-24294 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-24294 · Security Note
• https://bdu.fstec.ru/vul/2026-02974 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-24294 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-24294 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24294 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/advisory/CVE-2026-24294 · Vendor Advisory
• https://twitter.com/CVEnew/status/2033755394661564444 · Twitter Post
• https://t.me/avleonovcom/1637 · Telegram Post
• https://twitter.com/TheRabbitPy/status/2037495295294992588 · Twitter Post
• https://reddit.com/r/Automox/comments/1rq9hhy/march_2026_patch_tuesday_quick_highlights_for · Reddit Post
• https://twitter.com/CymonSkinner/status/2031679597956215032 · Twitter Post
• https://vicarius.io/vsociety/posts/cve-2026-24294-mitigation-script-improper-authentication-vulnerability-in-windows-smb-server · Note
• https://vicarius.io/vsociety/posts/cve-2026-24294-detection-script-improper-authentication-vulnerability-in-windows-smb-server · Note
• https://twitter.com/CybrPulse/status/2033182624680722881 · Twitter Post