CVE-2026-20926

HIGH
2026-01-13 [email protected]
7.5
CVSS 3.1
Share

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 13, 2026 - 18:16 nvd
HIGH 7.5

Tags

Windows Race Condition Windows 11 23h2 Windows 11 25h2 Windows 10 22h2 Windows 11 24h2 Windows 10 1607 Windows Server 2022 Windows Server 2019 Windows Server 2022 23h2 Windows Server 2012 Windows 10 21h2 Windows Server 2016 Windows 10 1809 Windows Server 2025 Microsoft

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

Analysis

Privilege escalation in Windows SMB Server (versions 10 22h2, 11 23h2, and 11 25h2) stems from improper synchronization of shared resources, allowing authenticated network attackers to elevate privileges. The race condition vulnerability requires specific timing conditions but carries high impact across confidentiality, integrity, and availability. …

Sign in for full analysis, threat intelligence, and remediation guidance.

Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Sign in for detailed remediation steps.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +38
POC: 0

Share

CVE-2026-20926 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy