CVE-2026-25166

HIGH
2026-03-10 [email protected]
7.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 10, 2026 - 18:18 nvd
HIGH 7.8

Tags

Deserialization Microsoft Windows 11 23h2 Windows Server 2019 Windows Server 2022 23h2 Windows 11 26h1 Windows 10 1607 Windows Server 2016 Windows 11 24h2 Windows 10 1809 Windows 10 22h2 Windows 10 21h2 Windows Server 2022 Windows 11 25h2 Windows

Description

Deserialization of untrusted data in Windows System Image Manager allows an authorized attacker to execute code locally.

Analysis

Local code execution in Windows System Image Manager (Windows 11 23h2, Windows Server 2019/2022) through unsafe deserialization of untrusted data. An authenticated local attacker can exploit this vulnerability to execute arbitrary code with elevated privileges. …

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Remediation

Within 24 hours: Identify all systems running Windows System Image Manager and document authorized users with access. Within 7 days: Implement network segmentation to restrict System Image Manager communications, disable the tool if not actively required, and enforce principle of least privilege on user accounts with access permissions. …

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Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: +0.6
CVSS: +39
POC: 0

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CVE-2026-25166 vulnerability details – vuln.today
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